我的侧边栏.css ：
body
{
margin: 0;
padding: 0;
}
#header
{
background-color: #577481;
float: left;
height: 50px;
width: 100%;
}
#sidebar
{
background-color: #4ea9d1;
float: left;
height: 100%;
left: -200px;
position: absolute;
top: 50px;
width: 200px;
}
#wrapper
{
float: left;
height: 100%;
width: 100%;
}
#content
{
background-color: #d6b141;
float: left;
height: 500px;
width: 100%;
}
#sideBarButton
{
background-image: url('SideBarButton.png');
background-position: center;
background-repeat: no-repeat;
background-size: 70% 70%;
border-radius: 25px;
height: 50px;
margin-left: 30px;
width: 50px;
}
我的索引.html：
<<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css" href="sidebar.css">
<script>
function slideIn(element1, element2, element3) {
var elem = document.getElementById(element1);
var elem2 = document.getElementById(element2);
var elem3 = document.getElementById(element3);
elem.style.transition = "left 0.5s ease-in 0s";
elem.style.left = "0px";
elem2.style.transition = "marginLeft 0.5s ease-in 0s";
elem2.style.marginLeft = "200px";
elem2.style.opacity = 0.75;
elem3.style.backgroundImage = 'url(SideBarButtonHover.png)';
elem3.style.backgroundColor = '#3f545d';
}
function slideOut(element1, element2, element3) {
var elem = document.getElementById(element1);
var elem2 = document.getElementById(element2);
var elem3 = document.getElementById(element3);
elem.style.transition = "left 0.5s ease-out 0s";
elem.style.left = "-200px";
elem2.style.transition = "marginLeft 0.5s ease-out 0s";
elem2.style.marginLeft = "0px";
elem2.style.opacity = 1;
elem3.style.backgroundImage = 'url(SideBarButton.png)';
elem3.style.backgroundColor = '#577481';
}
</script>
</head>
<body>
<div id="header">
<div id="sideBarButton" onMouseOver="slideIn('sidebar', 'content', 'sideBarButton');" onMouseOut="slideOut('sidebar', 'content', 'sideBarButton');"></div>
</div>
<div id="wrapper">
<div id="sidebar">
<ul>
<li><a href="#">Hallo</a>
</li>
</ul>
</div>
<div id="content">Ich bin der Content</div>
</div>
</body>
</html>
侧边栏）的过渡有效，但第二个元素（内容）无效。当您将鼠标悬停在侧边栏按钮上时，它应该像这样工作，侧边栏将出现，内容将同时向右移动。我的问题是为什么内容转换不起作用？谢谢你们的帮助！
第一个元素（侧边栏）的过渡有效，但第二个元素（内容）无效。当您将鼠标悬停在侧边栏按钮上时，它应该像这样工作，侧边栏将出现，内容将同时向右移动。我的问题是为什么内容转换不起作用？
谢谢你们的帮助！
在javascript中设置样式值时，样式名称应该是camelCase'd，但如果设置一个包含CSS属性的值，则应使用CSS属性语法。正确是：
elem2.style.transition = "margin-left 0.5s ease-in 0s";
elem2.style.marginLeft = "200px";