我正在学习一个名为"响应式HTML&Traversy Media在Youtube上发布的"CSS Side Menu From Scratch"(我发布该链接的声誉还不够)，我的侧导航出现了一些问题。请注意，在我单击左上角的openSlideMenu()图标之前，它的显示方式与单击它时的显示方式不同。我已经按照老师的代码转到了-t，但界面上似乎至少有4个问题。
-
在3栏图标附近有一个打开的标记符号，当菜单打开时和不打开时都会保留。
-
当点击打开时，侧导航会远离页面左侧，在菜单和页面左侧之间产生一个很大的空白间隙，在那里不应该存在间隙。
-
侧导航越过标题文本"响应式侧菜单"，从而阻止文本的"e菜单"部分，而标题文本应该是响应的，并在侧导航移动时移动，如教程中所述。
-
侧导航中的closeMenuButton()的位置直接位于元素上方，而它应该位于右角。
我的HTML/Javascript代码：
function openSlideMenu() {
document.getElementById('side-menu').style.width = '250px';
document.getElementById('side-menu').style.marginLeft = '250px';
}
function closeSlideMenu() {
document.getElementById('side-menu').style.width = '0px';
document.getElementById('side-menu').style.marginLeft = '0px';
}body {
font-family: "Arial", Serif;
background-color: #f4f4f4;
overflow-x: hidden;
}
.navbar {
background-color: #3b5998;
overflow: hidden;
height: 63px;
}
.navbar a {
float: left;
display: block;
color: #f2f2f2;
text-align: center;
padding: 14px 16px;
text-decoration: none;
font-size: 17px;
}
.navbar ul {
margin: 8px 0 0 0;
list-style: none;
}
.navbar a:hover {
background-color: #ddd;
color: #000;
}
.side-nav {
height: 100%;
width: 0;
position: fixed;
z-index: 1;
top: 0;
left: 0;
background-color: #111;
opacity: 0.9;
overflow-x: hidden;
padding-top: 60px;
transition: 0.5s;
}
.side-nav a {
padding: 10px 10px 10px 30px;
text-decoration: none;
font-size: 22px;
color: #ccc;
display: block;
transition: 0.3s;
}
.side-nav a:hover {
color: #fff;
}
.side-nav .btn-close {
postion: absolute;
top: 0;
right: 22px;
font-size: 36px;
margin-left: 50px;
}
# main {
transition: margin-left 0.5s;
padding: 20px;
overflow: hidden;
width: 100%;
}
@media(max-width: 568px) {
.navbar-nav {
display: none
}
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width-device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie-edge">
<title>Document</title>
<link rel="stylesheet" href="style.css" </head>
<body>
<nav class="navbar">
<span class="open-slide">
<a href="#" onClick="openSlideMenu()">
<<svg width="30" height="30">
<path d="M0,5 30,5" stroke=#fff stroke-width="5"/>
<path d="M0,14 30,14" stroke=#fff stroke-width="5"/>
<path d="M0,23 30,23" stroke=#fff stroke-width="5"/>
</svg>
</a>
</span>
<ul class="navbar-nav">
<li><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Service</a></li>
<li><a href="#">Contact</a></li>
</ul>
</nav>
<div id="side-menu" class="side-nav">
<a href="#" class="btn-close" onClick="closeSlideMenu()">×</a>
<a href="#">Home</a>
<a href="#">About</a>
<a href="#">Services</a>
<a href="#">Contact</a>
</div>
<div id="main">
<h1>Responsive Side Menu</h1>
</div>
</body>
</html>此外，老师在Youtube上的视频描述中有他制作的代码，你可以通过搜索"Responsive HTML&CSS侧菜单从头开始。
代码中充满了错误这是工作代码查找您的错误
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width-device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie-edge">
<title>Document</title>
<link rel="stylesheet" href="style.css">
<style media="screen">
body {
font-family: "Arial", Serif;
background-color: #f4f4f4;
overflow-x: hidden;
}
.navbar {
background-color: #3b5998;
overflow: hidden;
height: 63px;
}
.navbar a {
float: left;
display: block;
color: #f2f2f2;
text-align: center;
padding: 14px 16px;
text-decoration: none;
font-size: 17px;
}
.navbar ul {
margin: 8px 0 0 0;
list-style: none;
}
.navbar a:hover {
background-color: #ddd;
color: #000;
}
.side-nav {
height: 100%;
width: 0;
position: fixed;
z-index: 1;
top: 0;
left: 0;
background-color: #111;
opacity: 0.9;
overflow-x: hidden;
margin-top: 60px;
transition: 0.5s;
}
.side-nav a {
padding: 10px 10px 10px 30px;
text-decoration: none;
font-size: 22px;
color: #ccc;
display: block;
transition: 0.3s;
}
.side-nav a:hover {
color: #fff;
}
.side-nav .btn-close {
position: absolute;
top: 0;
right: 22px;
font-size: 36px;
display: inline;
}
#main {
transition: margin-left 0.5s;
padding: 20px;
overflow: hidden;
width: 100%;
}
.open-slide {
display: none;
}
@media(max-width: 568px) {
.navbar-nav {
display: none
}
.open-slide {
display: inline-block;
}
}
</style>
</head>
<body>
<nav class="navbar">
<span class="open-slide">
<a href="#" onClick="openSlideMenu()">
<<svg width="30" height="30">
<path d="M0,5 30,5" stroke=#fff stroke-width="5"/>
<path d="M0,14 30,14" stroke=#fff stroke-width="5"/>
<path d="M0,23 30,23" stroke=#fff stroke-width="5"/>
</svg>
</a>
</span>
<ul class="navbar-nav">
<li><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Service</a></li>
<li><a href="#">Contact</a></li>
</ul>
</nav>
<div id="side-menu" class="side-nav">
<a href="#" class="btn-close" onClick="closeSlideMenu()">×</a>
<a href="#">Home</a>
<a href="#">About</a>
<a href="#">Services</a>
<a href="#">Contact</a>
</div>
<div id="main">
<h1>Responsive Side Menu</h1>
</div>
<script type="text/javascript">
function openSlideMenu() {
document.getElementById('side-menu').style.width = '250px';
}
function closeSlideMenu() {
document.getElementById('side-menu').style.width = '0px';
document.getElementById('side-menu').style.marginLeft = '0px';
}
</script>
</body>
</html>