小贝子编程

HTML:滚动过程中，当交叉固定在页面顶部的粘性文本时，屏幕会出现卡顿



我尝试搜索堆栈溢出，认为肯定有人已经问过这个菜鸟问题了。我找不到解决方案，因此作为新问题发布。 我有一个需要显示为报告的 HTML 代码。

<html>
<style>
body {
background-color: rgb(59, 75, 84);
font-family:      arial, verdana, trebuchet, officina, sans-serif;
margin: 1; }
.top-container {
background-color: #f1f1f1;
padding: 1px;
text-align: center;
}
.mid-container {
background-color: rgb(38, 52 ,63);
padding: 1px;
text-align: left;
}
.header {
text-align: center;
padding: 5px 8px;
background: rgb(25, 165, 88);
color: #f1f1f1;
position:relative;
margin: 1;
z-index: 100;
}
.mid-container {
padding: 1px;
}
.sticky {
position: fixed;
top: 0;
left: 0;
width: 100%;
}
.sticky + .mid-container {
position:absolute;
overflow: auto;
padding-top:auto;
}
table
{
margin-bottom:    10px;
vertical-align:   top; 
border:           0;
border-spacing:   1px;
padding:          2px;
}
.HeadingTable
{
width:            100%;
text-align:       center;
margin-top:       15px;
margin-bottom:    30px;
margin-left:      auto;
margin-right:     auto;
background-color: rgb(220, 221, 222);
}
.SubHeadingTable
{
width:            100%;
text-align:       center;
margin-top:       15px;
margin-bottom:    25px;
background-color: rgb(220, 221, 222);
}
.ResultTable
{
width:          100%;
text-align:     left;
padding-right:  20px;
}
table.ResultTable td
{
vertical-align: top;
}
.OverallResultTable
{
width:         50%;
text-align:    center;
margin-bottom: 20px;
margin-left:   auto;
margin-right:  auto;
font-weight:   bold;
}
.TableHeadingCell
{
background-color: rgb(179, 179, 179);
font-family:      arial, verdana, trebuchet, officina, sans-serif;
font-weight:      bold;
text-align:       center;
}
.CellNoColor
{
text-align:     left;
vertical-align: top;
}   
.DefaultCell
{
background-color: rgb(229, 229, 229);
text-align:       left;
}
.NumberCell
{
background-color: rgb(229, 229, 229);
text-align:       center;
min-width:        50px;
}
.PositiveResultCell
{
text-align:       center;
background-color: rgb(25, 165, 88);
}
.NegativeResultCell
{
text-align:       center;
background-color: rgb(240, 0, 0);
}
.WarningCell
{
text-align:       center;
background-color: rgb(255, 255, 0);
}
.NegativeResult
{
background-color: rgb(240, 0, 0);
text-align:       center;
font-weight:      bold;
}
.PositiveResult
{
background-color: rgb(25, 165, 88);
text-align:       center;
font-weight:      bold;
}
.Heading1
{
font-family: arial, sans-serif;
font-weight: bold;
font-size:   26px;
}
.Heading2
{
font-family: arial, sans-serif;
font-weight: bold;
font-size:   20px;
}
.Heading3
{
font-family:   arial, sans-serif;
font-weight:   bold;
font-size:     18px;
margin-bottom: 20px;
margin-top:    20px;
}
.Heading4
{
font-family:   arial, sans-serif;
font-weight:   bold;
font-size:     16px;
margin-top:    10px;
margin-bottom: 10px;
}
.Heading5
{
font-family:   arial, sans-serif;
font-weight:   bold;
font-size:     14px;
margin-top:    8px;
margin-bottom: 8px;
}
p
{
Margin-bottom: 20px;
}
.TestGroupHeadingBackground
{
background-color: rgb(179, 179, 179);
}
.Indentation
{
margin-left:  20px;
}
</style>
<head>
<title>NVM Comparision Report</title>
</head>
<body>
<div class="top-container">
<h1>NVM Memory Comparision Report</h1>
</div>
<div class="header" id="myHeader">
<h2>Overall Report Passed</h2>
</div>
<div class="mid-container">
<h3>General Information</h3>
</div>
<div class="Heading4">Test Setup</div>
<div class="Indentation">
<table cellpadding="10">
<td class="CellNoColor">Report Generation: </td>
<td class="CellNoColor">Success</td>
</tr>
<tr>
<td class="CellNoColor">File's Root Path: </td>
<td class="CellNoColor">New XXX Path:   XXX</td>
</tr>
<tr>
<td class="CellNoColor">Configuration Comment: </td>
<td class="CellNoColor">XXX</td>
</tr>
<tr>
<td class="CellNoColor">XXX: </td>
<td class="CellNoColor">XXX</td>
</tr>
</table>
</div>
<div class="Heading4">Blocks Present in DataConfig</div>
<div class="Heading5">New Version:0042</div>
<div class="Indentation" style="float: none;">
<table cellpadding="5" width = "70%">
<tr>
<th class="TableHeadingCell" width="18%">Dataset Name</th>
<th class="TableHeadingCell" width="12%" text-align:center;>SparePart Number</th>
<th class="TableHeadingCell">Blocks Present</th>
<th class="TableHeadingCell" width="10%">Result</th>
</tr>
<tr>
<td class="TableHeadingCell">All Datasets</td>
<td class="DefaultCell" style = text-align:center;>All Sparepart Numbers</td>
<td class="DefaultCell">   Blocks 81, 99, 115, 120, 121, 133</td>
<td class="PositiveResult">Pass</td>
</tr>
</table>
</div>
<div class="Heading5">Old Version:0041</div>
<div class="Indentation" style="float: none;">
<table cellpadding="5" width = "70%">
<tr>
<th class="TableHeadingCell" width="18%">Dataset Name</th>
<th class="TableHeadingCell" width="12%" text-align:center;>SparePart Number</th>
<th class="TableHeadingCell">Blocks Present</th>
<th class="TableHeadingCell" width="10%">Result</th>
</tr>
<tr>
<td class="TableHeadingCell">All Datasets</td>
<td class="DefaultCell" style = text-align:center;>All Sparepart Numbers</td>
<td class="DefaultCell">   Blocks 81, 99, 115</td>
<td class="PositiveResult">Pass</td>
</tr>
</table>
</div>
<div class="Heading4">Following Blocks are Missing in New FEE Dumps:</div>
<div class="Indentation" style="float: none;">
<table cellpadding="5" width = "70%">
<tr>
<th class="TableHeadingCell" width="18%">File Name</th>
<th class="TableHeadingCell" width="12%" text-align:center;>SparePart Number</th>
<th class="TableHeadingCell">Blocks Missing</th>
<th class="TableHeadingCell" width="10%">Result</th>
</tr>
<tr>
<td class="TableHeadingCell">All Files</td>
<td class="DefaultCell" style = text-align:center;>All</td>
<td class="DefaultCell"></td>
<td class="WarningCell" rowspan=2>Pass</td>
</tr>
</table>
</div>
<div class="Heading4">Following Blocks are Missing in Old FEE Dumps:</div>
<div class="Indentation" style="float: none;">
<table cellpadding="5" width = "70%">
<tr>
<th class="TableHeadingCell" width="18%">File Name</th>
<th class="TableHeadingCell" width="12%" text-align:center;>SparePart Number</th>
<th class="TableHeadingCell">Blocks Missing</th>
<th class="TableHeadingCell" width="10%">Result</th>
</tr>
<tr>
<td class="TableHeadingCell">All Files</td>
<td class="DefaultCell" style = text-align:center;>All</td>
<td class="DefaultCell"></td>
<td class="WarningCell" rowspan=2>Pass</td>
</tr>
</table>
</div>
<table cellpadding="5" class="SubHeadingTable">
<tr>
<td>
<big class="Heading2">Detailed Comparision Between FEE DUMPs</big>
</td>
</tr>
</table>
<div class="Indentation"></div>
<table cellpadding="5" class="TestGroupHeadingBackground">
<tr>
<td>
<big class="Heading3">XXX : </big>
</td>
</tr>
</table>
<div class="Indentation">
<p>Report is based on data obtained from comparing files XXX and XXX in folder RdW.</p>
</div>
<div class="Indentation"></div>
<div class="Indentation">
<table cellpadding="5" class="ResultTable">
<tr>
<th class="TableHeadingCell" width="4%">Block ID</th>
<th class="TableHeadingCell" width="4%">Block Address</th>
<th class="TableHeadingCell" width="10%">Block Name</th>
<th class="TableHeadingCell" width="10%">Parameter Name</th>
<th class="TableHeadingCell" width="4%">Size</th>
<th class="TableHeadingCell" width="auto">Old Data</th>
<th class="TableHeadingCell" width="auto">New Data</th>
<th class="TableHeadingCell" width="8%">Result</th>
</tr>
<tr>
<td style="vertical-align: middle;" class="NumberCell">3</td>
<td style="vertical-align: middle;" class="NumberCell">0x03000100</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="NumberCell">4 Bytes</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="WarningCell">Value Changed</td>
</tr>
<tr>
<td style="vertical-align: middle;" class="NumberCell">5</td>
<td style="vertical-align: middle;" class="NumberCell">0x03000300</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="NumberCell">4 Bytes</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="WarningCell">Value Changed</td>
</tr>
<tr>
<td style="vertical-align: middle;" class="NumberCell">45</td>
<td style="vertical-align: middle;" class="NumberCell">0x03002F00</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="NumberCell">5 Bytes</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="WarningCell">Value Changed</td>
</tr>
</table>
</div>
<div class="Indentation"></div>
<table cellpadding="5" class="TestGroupHeadingBackground">
<tr>
<td>
<big class="Heading3">XXX</big>
</td>
</tr>
</table>
<div class="Indentation">
<p>Report is based on data obtained from comparing files XXX and XXX in folder USA.</p>
</div>
<div class="Indentation"></div>
<div class="Indentation">
<table cellpadding="5" class="ResultTable">
<tr>
<th class="TableHeadingCell" width="4%">Block ID</th>
<th class="TableHeadingCell" width="4%">Block Address</th>
<th class="TableHeadingCell" width="10%">Block Name</th>
<th class="TableHeadingCell" width="10%">Parameter Name</th>
<th class="TableHeadingCell" width="4%">Size</th>
<th class="TableHeadingCell" width="auto">Old Data</th>
<th class="TableHeadingCell" width="auto">New Data</th>
<th class="TableHeadingCell" width="8%">Result</th>
</tr>
<tr>
<td style="vertical-align: middle;" class="NumberCell">3</td>
<td style="vertical-align: middle;" class="NumberCell">0x03000100</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="NumberCell">4 Bytes</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="WarningCell">Value Changed</td>
</tr>
<tr>
<td style="vertical-align: middle;" class="NumberCell">5</td>
<td style="vertical-align: middle;" class="NumberCell">0x03000300</td>
<td style="vertical-align: middle;" class="DefaultCell">Fbl_Global</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="NumberCell">4 Bytes</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="WarningCell">Value Changed</td>
</tr>
<tr>
<td style="vertical-align: middle;" class="NumberCell">45</td>
<td style="vertical-align: middle;" class="NumberCell">0x03002F00</td>
<td style="vertical-align: middle;" class="DefaultCell">ProdData</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="NumberCell">5 Bytes</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="WarningCell">Value Changed</td>
</tr>
</table>
</div>
<table cellpadding="5" class="SubHeadingTable">
<tr>
<td>
<big class="Heading2">End of Report</big>
</td>
</tr>
</table>
<div class="Heading4" style="text-align=right;">Author: XXX</div>
<script>
window.onscroll = function()
{
myFunction()
};
var header = document.getElementById("myHeader");
var sticky = header.offsetTop;
function myFunction()
{
if (window.pageYOffset > sticky)
{
header.classList.add("sticky");
}
else
{
header.classList.remove("sticky");
}
}
</script>
</body>

当我在IE或chrome中运行它时，"总体报告通过"粘性文本固定在顶部，但是当越过该转换点时，整个屏幕会闪烁片刻。我可以通过在 .sticky + .mid-container {} 块内提供填充 top：63px 而不是 auto(不确定自动做什么(来为我的屏幕修复它


谁能建议我如何完全避免这种闪烁+使所有屏幕尺寸+分辨率都很常见？ 我正在使用IE 11 + Mozilla Firefox。仅当从粘滞文本向下滚动(从"总体报告通过"滚动到"一般信息"(时才会发生闪烁

您所做的是通过添加此类.sticky从文档流中取出标头，从相对于位置更改为绝对位置，同时应用.sticky + .mid-container在div.mid-container上应用绝对位置，这是您看到的口吃的原因，如果只是在div.mid-container上应用边距，因此当标头超出文档流时，元素不会对此做出反应， 因此，边距顶部等于标题的高度应该可以做到这一点。

.sticky + .mid-container {
/* position:absolute; Removed */
/* Added : 39px is the height of your header. */
/* If this varies just include js to make it dynamic. */
margin-top:39px; 
overflow: auto;
/* padding-top:auto; Removed : auto is not a valid value for padding */
}


window.onscroll = function() {
myFunction()
};
var header = document.getElementById("myHeader");
var sticky = header.offsetTop;
function myFunction() {
// i figured it should be '>='
if (window.pageYOffset >= sticky) {
header.classList.add("sticky");
} else {
header.classList.remove("sticky");
}
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background-color: rgb(59, 75, 84);
font-family: arial, verdana, trebuchet, officina, sans-serif;
margin: 1;
}
.top-container {
background-color: #f1f1f1;
padding: 1px;
text-align: center;
}
.mid-container {
background-color: rgb(38, 52, 63);
padding: 1px;
text-align: left;
}
.header {
text-align: center;
padding: 5px 8px;
background: rgb(25, 165, 88);
color: #f1f1f1;
position: relative;
margin: 1;
z-index: 100;
}
.mid-container {
padding: 1px;
}
.sticky {
position: fixed;
top: 0;
left: 0;
width: 100%;
}
.sticky+.mid-container {
margin-top: 39px;
overflow: auto;
}
table {
margin-bottom: 10px;
vertical-align: top;
border: 0;
border-spacing: 1px;
padding: 2px;
}
.HeadingTable {
width: 100%;
text-align: center;
margin-top: 15px;
margin-bottom: 30px;
margin-left: auto;
margin-right: auto;
background-color: rgb(220, 221, 222);
}
.SubHeadingTable {
width: 100%;
text-align: center;
margin-top: 15px;
margin-bottom: 25px;
background-color: rgb(220, 221, 222);
}
.ResultTable {
width: 100%;
text-align: left;
padding-right: 20px;
}
table.ResultTable td {
vertical-align: top;
}
.OverallResultTable {
width: 50%;
text-align: center;
margin-bottom: 20px;
margin-left: auto;
margin-right: auto;
font-weight: bold;
}
.TableHeadingCell {
background-color: rgb(179, 179, 179);
font-family: arial, verdana, trebuchet, officina, sans-serif;
font-weight: bold;
text-align: center;
}
.CellNoColor {
text-align: left;
vertical-align: top;
}
.DefaultCell {
background-color: rgb(229, 229, 229);
text-align: left;
}
.NumberCell {
background-color: rgb(229, 229, 229);
text-align: center;
min-width: 50px;
}
.PositiveResultCell {
text-align: center;
background-color: rgb(25, 165, 88);
}
.NegativeResultCell {
text-align: center;
background-color: rgb(240, 0, 0);
}
.WarningCell {
text-align: center;
background-color: rgb(255, 255, 0);
}
.NegativeResult {
background-color: rgb(240, 0, 0);
text-align: center;
font-weight: bold;
}
.PositiveResult {
background-color: rgb(25, 165, 88);
text-align: center;
font-weight: bold;
}
.Heading1 {
font-family: arial, sans-serif;
font-weight: bold;
font-size: 26px;
}
.Heading2 {
font-family: arial, sans-serif;
font-weight: bold;
font-size: 20px;
}
.Heading3 {
font-family: arial, sans-serif;
font-weight: bold;
font-size: 18px;
margin-bottom: 20px;
margin-top: 20px;
}
.Heading4 {
font-family: arial, sans-serif;
font-weight: bold;
font-size: 16px;
margin-top: 10px;
margin-bottom: 10px;
}
.Heading5 {
font-family: arial, sans-serif;
font-weight: bold;
font-size: 14px;
margin-top: 8px;
margin-bottom: 8px;
}
p {
Margin-bottom: 20px;
}
.TestGroupHeadingBackground {
background-color: rgb(179, 179, 179);
}
.Indentation {
margin-left: 20px;
}
<div class="top-container">
<h1>NVM Memory Comparision Report</h1>
</div>
<div class="header" id="myHeader">
<h2>Overall Report Passed</h2>
</div>
<div class="mid-container" style="margin-top: 0px;">
<h3>General Information</h3>
</div>
<div class="Heading4">Test Setup</div>
<div class="Indentation">
<table cellpadding="10">
<tbody>
<tr>
<td class="CellNoColor">Report Generation: </td>
<td class="CellNoColor">Success</td>
</tr>
<tr>
<td class="CellNoColor">File's Root Path: </td>
<td class="CellNoColor">New XXX Path: XXX</td>
</tr>
<tr>
<td class="CellNoColor">Configuration Comment: </td>
<td class="CellNoColor">XXX</td>
</tr>
<tr>
<td class="CellNoColor">XXX: </td>
<td class="CellNoColor">XXX</td>
</tr>
</tbody>
</table>
</div>
<div class="Heading4">Blocks Present in DataConfig</div>
<div class="Heading5">New Version:0042</div>
<div class="Indentation" style="float: none;">
<table cellpadding="5" width="70%">
<tbody>
<tr>
<th class="TableHeadingCell" width="18%">Dataset Name</th>
<th class="TableHeadingCell" width="12%" text-align:center;="">SparePart Number</th>
<th class="TableHeadingCell">Blocks Present</th>
<th class="TableHeadingCell" width="10%">Result</th>
</tr>
<tr>
<td class="TableHeadingCell">All Datasets</td>
<td class="DefaultCell" style="t" ext-align:center;="">All Sparepart Numbers</td>
<td class="DefaultCell"> Blocks 81, 99, 115, 120, 121, 133</td>
<td class="PositiveResult">Pass</td>
</tr>
</tbody>
</table>
</div>
<div class="Heading5">Old Version:0041</div>
<div class="Indentation" style="float: none;">
<table cellpadding="5" width="70%">
<tbody>
<tr>
<th class="TableHeadingCell" width="18%">Dataset Name</th>
<th class="TableHeadingCell" width="12%" text-align:center;="">SparePart Number</th>
<th class="TableHeadingCell">Blocks Present</th>
<th class="TableHeadingCell" width="10%">Result</th>
</tr>
<tr>
<td class="TableHeadingCell">All Datasets</td>
<td class="DefaultCell" style="t" ext-align:center;="">All Sparepart Numbers</td>
<td class="DefaultCell"> Blocks 81, 99, 115</td>
<td class="PositiveResult">Pass</td>
</tr>
</tbody>
</table>
</div>

<table cellpadding="5" class="SubHeadingTable">
<tbody>
<tr>
<td>
<big class="Heading2">Detailed Comparision Between FEE DUMPs</big>
</td>
</tr>
</tbody>
</table>

<div class="Indentation"></div>
<table cellpadding="5" class="TestGroupHeadingBackground">
<tbody>
<tr>
<td>
<big class="Heading3">XXX</big>
</td>
</tr>
</tbody>
</table>
<div class="Indentation">
<p>Report is based on data obtained from comparing files XXX and XXX in folder USA.</p>
</div>
<div class="Indentation"></div>
<div class="Indentation">
<table cellpadding="5" class="ResultTable">
<tbody>
<tr>
<th class="TableHeadingCell" width="4%">Block ID</th>
<th class="TableHeadingCell" width="4%">Block Address</th>
<th class="TableHeadingCell" width="10%">Block Name</th>
<th class="TableHeadingCell" width="10%">Parameter Name</th>
<th class="TableHeadingCell" width="4%">Size</th>
<th class="TableHeadingCell" width="auto">Old Data</th>
<th class="TableHeadingCell" width="auto">New Data</th>
<th class="TableHeadingCell" width="8%">Result</th>
</tr>
<tr>
<td style="vertical-align: middle;" class="NumberCell">3</td>
<td style="vertical-align: middle;" class="NumberCell">0x03000100</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="NumberCell">4 Bytes</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="WarningCell">Value Changed</td>
</tr>
<tr>
<td style="vertical-align: middle;" class="NumberCell">5</td>
<td style="vertical-align: middle;" class="NumberCell">0x03000300</td>
<td style="vertical-align: middle;" class="DefaultCell">Fbl_Global</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="NumberCell">4 Bytes</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="WarningCell">Value Changed</td>
</tr>
<tr>
<td style="vertical-align: middle;" class="NumberCell">45</td>
<td style="vertical-align: middle;" class="NumberCell">0x03002F00</td>
<td style="vertical-align: middle;" class="DefaultCell">ProdData</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="NumberCell">5 Bytes</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="WarningCell">Value Changed</td>
</tr>
</tbody>
</table>
</div>
<table cellpadding="5" class="SubHeadingTable">
<tbody>
<tr>
<td>
<big class="Heading2">End of Report</big>
</td>
</tr>
</tbody>
</table>
<div class="Heading4" style="text-align=right;">Author: XXX</div>

编辑

请注意，我必须删除一些标记才能发布编辑，它超出了限制。

// we get the header height then apply it as marginTop to
// .mid-container
// removed the .sticky + .mid-container{} styling
// because we don't know the height of the header
// so we can't hard code it.
window.onscroll = function() {
myFunction()
};
var header = document.getElementById("myHeader");
var sticky = header.offsetTop;
function myFunction() {
// i figured it should be '>='
if (window.pageYOffset >= sticky) {
header.classList.add("sticky");
document.querySelector('.mid-container').style.marginTop = header.getBoundingClientRect().height + "px";
} else {
header.classList.remove("sticky");
document.querySelector('.mid-container').style.marginTop = "0px";
}
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background-color: rgb(59, 75, 84);
font-family: arial, verdana, trebuchet, officina, sans-serif;
margin: 1;
}
.top-container {
background-color: #f1f1f1;
padding: 1px;
text-align: center;
}
.mid-container {
background-color: rgb(38, 52, 63);
padding: 1px;
text-align: left;
}
.header {
text-align: center;
padding: 5px 8px;
background: rgb(25, 165, 88);
color: #f1f1f1;
position: relative;
margin: 1;
z-index: 100;
/* For refrence */
height: 300px;
}
.mid-container {
padding: 1px;
}
.sticky {
position: fixed;
top: 0;
left: 0;
width: 100%;
}
.sticky+.mid-container {
margin-top: 39px;
overflow: auto;
}
table {
margin-bottom: 10px;
vertical-align: top;
border: 0;
border-spacing: 1px;
padding: 2px;
}
.HeadingTable {
width: 100%;
text-align: center;
margin-top: 15px;
margin-bottom: 30px;
margin-left: auto;
margin-right: auto;
background-color: rgb(220, 221, 222);
}
.SubHeadingTable {
width: 100%;
text-align: center;
margin-top: 15px;
margin-bottom: 25px;
background-color: rgb(220, 221, 222);
}
.ResultTable {
width: 100%;
text-align: left;
padding-right: 20px;
}
table.ResultTable td {
vertical-align: top;
}
.OverallResultTable {
width: 50%;
text-align: center;
margin-bottom: 20px;
margin-left: auto;
margin-right: auto;
font-weight: bold;
}
.TableHeadingCell {
background-color: rgb(179, 179, 179);
font-family: arial, verdana, trebuchet, officina, sans-serif;
font-weight: bold;
text-align: center;
}
.CellNoColor {
text-align: left;
vertical-align: top;
}
.DefaultCell {
background-color: rgb(229, 229, 229);
text-align: left;
}
.NumberCell {
background-color: rgb(229, 229, 229);
text-align: center;
min-width: 50px;
}
.PositiveResultCell {
text-align: center;
background-color: rgb(25, 165, 88);
}
.NegativeResultCell {
text-align: center;
background-color: rgb(240, 0, 0);
}
.WarningCell {
text-align: center;
background-color: rgb(255, 255, 0);
}
.NegativeResult {
background-color: rgb(240, 0, 0);
text-align: center;
font-weight: bold;
}
.PositiveResult {
background-color: rgb(25, 165, 88);
text-align: center;
font-weight: bold;
}
.Heading1 {
font-family: arial, sans-serif;
font-weight: bold;
font-size: 26px;
}
.Heading2 {
font-family: arial, sans-serif;
font-weight: bold;
font-size: 20px;
}
.Heading3 {
font-family: arial, sans-serif;
font-weight: bold;
font-size: 18px;
margin-bottom: 20px;
margin-top: 20px;
}
.Heading4 {
font-family: arial, sans-serif;
font-weight: bold;
font-size: 16px;
margin-top: 10px;
margin-bottom: 10px;
}
.Heading5 {
font-family: arial, sans-serif;
font-weight: bold;
font-size: 14px;
margin-top: 8px;
margin-bottom: 8px;
}
p {
Margin-bottom: 20px;
}
.TestGroupHeadingBackground {
background-color: rgb(179, 179, 179);
}
.Indentation {
margin-left: 20px;
}
<div class="top-container">
<h1>NVM Memory Comparision Report</h1>
</div>
<div class="header" id="myHeader">
<h2>Overall Report Passed</h2>
</div>
<div class="mid-container" style="margin-top: 0px;">
<h3>General Information</h3>
</div>
<div class="Heading4">Test Setup</div>
<div class="Indentation">
<table cellpadding="10">
<tbody>
<tr>
<td class="CellNoColor">Report Generation: </td>
<td class="CellNoColor">Success</td>
</tr>
<tr>
<td class="CellNoColor">File's Root Path: </td>
<td class="CellNoColor">New XXX Path: XXX</td>
</tr>
<tr>
<td class="CellNoColor">Configuration Comment: </td>
<td class="CellNoColor">XXX</td>
</tr>
<tr>
<td class="CellNoColor">XXX: </td>
<td class="CellNoColor">XXX</td>
</tr>
</tbody>
</table>
</div>
<div class="Heading4">Blocks Present in DataConfig</div>
<div class="Heading5">New Version:0042</div>
<div class="Indentation" style="float: none;">
<table cellpadding="5" width="70%">
<tbody>
<tr>
<th class="TableHeadingCell" width="18%">Dataset Name</th>
<th class="TableHeadingCell" width="12%" text-align:center;="">SparePart Number</th>
<th class="TableHeadingCell">Blocks Present</th>
<th class="TableHeadingCell" width="10%">Result</th>
</tr>
<tr>
<td class="TableHeadingCell">All Datasets</td>
<td class="DefaultCell" style="t" ext-align:center;="">All Sparepart Numbers</td>
<td class="DefaultCell"> Blocks 81, 99, 115, 120, 121, 133</td>
<td class="PositiveResult">Pass</td>
</tr>
</tbody>
</table>
</div>
<div class="Heading5">Old Version:0041</div>
<div class="Indentation" style="float: none;">
<table cellpadding="5" width="70%">
<tbody>
<tr>
<th class="TableHeadingCell" width="18%">Dataset Name</th>
<th class="TableHeadingCell" width="12%" text-align:center;="">SparePart Number</th>
<th class="TableHeadingCell">Blocks Present</th>
<th class="TableHeadingCell" width="10%">Result</th>
</tr>
<tr>
<td class="TableHeadingCell">All Datasets</td>
<td class="DefaultCell" style="t" ext-align:center;="">All Sparepart Numbers</td>
<td class="DefaultCell"> Blocks 81, 99, 115</td>
<td class="PositiveResult">Pass</td>
</tr>
</tbody>
</table>
</div>

<table cellpadding="5" class="SubHeadingTable">
<tbody>
<tr>
<td>
<big class="Heading2">Detailed Comparision Between FEE DUMPs</big>
</td>
</tr>
</tbody>
</table>

<div class="Indentation"></div>
<table cellpadding="5" class="TestGroupHeadingBackground">
<tbody>
<tr>
<td>
<big class="Heading3">XXX</big>
</td>
</tr>
</tbody>
</table>
<div class="Indentation">
<p>Report is based on data obtained from comparing files XXX and XXX in folder USA.</p>
</div>
<div class="Indentation"></div>
<div class="Indentation">
<table cellpadding="5" class="ResultTable">
<tbody>
<tr>
<th class="TableHeadingCell" width="4%">Block ID</th>
<th class="TableHeadingCell" width="4%">Block Address</th>
<th class="TableHeadingCell" width="10%">Block Name</th>
<th class="TableHeadingCell" width="10%">Parameter Name</th>
<th class="TableHeadingCell" width="4%">Size</th>
<th class="TableHeadingCell" width="auto">Old Data</th>
<th class="TableHeadingCell" width="auto">New Data</th>
<th class="TableHeadingCell" width="8%">Result</th>
</tr>
<tr>
<td style="vertical-align: middle;" class="NumberCell">3</td>
<td style="vertical-align: middle;" class="NumberCell">0x03000100</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="NumberCell">4 Bytes</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="WarningCell">Value Changed</td>
</tr>
<tr>
<td style="vertical-align: middle;" class="NumberCell">5</td>
<td style="vertical-align: middle;" class="NumberCell">0x03000300</td>
<td style="vertical-align: middle;" class="DefaultCell">Fbl_Global</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="NumberCell">4 Bytes</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="WarningCell">Value Changed</td>
</tr>
<tr>
<td style="vertical-align: middle;" class="NumberCell">45</td>
<td style="vertical-align: middle;" class="NumberCell">0x03002F00</td>
<td style="vertical-align: middle;" class="DefaultCell">ProdData</td>
<td style="vertical-align: middle;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="NumberCell">5 Bytes</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;font-family: Consolas,Monaco,Lucida Console,Courier New, monospace;" class="DefaultCell">XXX</td>
<td style="vertical-align: middle;" class="WarningCell">Value Changed</td>
</tr>
</tbody>
</table>
</div>
<table cellpadding="5" class="SubHeadingTable">
<tbody>
<tr>
<td>
<big class="Heading2">End of Report</big>
</td>
</tr>
</tbody>
</table>
<div class="Heading4" style="text-align=right;">Author: XXX</div>

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