我一整天都在我的网站上工作，但现在我突然发现，在移动格式下，我的按钮（徽标和菜单按钮，它们被称为徽标和菜单图标）不再工作了。以前工作过的。在桌面（768像素宽）版本中，它们都工作得很好。
/*--------STYLE.CSS--------*/
@import url('https://fonts.googleapis.com/css?family=Alegreya+Sans:300,500,700');
* {
margin: 0;
padding: 0;
border: 0;
}
html {
height: 100%;
}
body {
height: 100%;
background: #424949;
color: #f5f5f5;
font-family: 'Alegreya Sans', sans-serif;
margin: 0;
}
h2 {
font-size: 250%;
font-weight: 700;
text-align: center;
padding-top: 2%;
}
p {
font-size: 160%;
font-weight: 500;
line-height: 150%;
padding: 3%;
text-indent: 2%;
text-align: justify;
}
img {
max-width: 100%;
height: auto;
width: auto;
margin-bottom: -4px;
}
header {
background-color: #1a1a1a;
width: 100%;
height: 86px;
}
#header-inner {
max-width: 1200px;
margin: 0 auto;
}
#logo {
margin: -5px 0 -5px 20px;
padding: 0 10px 0 10px;/*top right bottom left*/
float: left;
width: 96px;
height: 96px;
background: url(img/logohead96x.png) no-repeat center; /*org img/logo128x.png*/
}
nav {
float: right;
padding: 4px 20px 0 0;
}
#menu-icon {
display: hidden;
width: 40px;
height: 40px;
background: url(img/nav.png) center;
}
a:hover#menu-icon {
border-radius: 4px 4px 0 0;
}
ul {
list-style-type: none;
margin-right: 10px;
}
nav ul li {
font-family: 'Alegreya Sans', sans-serif;
font-size: 150%;
display: inline-block;
float: left;
margin-top: 35px;
}
nav ul li a {
color:#f5f5f5;
text-decoration: none;
padding: 25px;
}
nav ul li a:hover {
color: #707b7c;
}
.current {
color: #707b7c;
}
.container {
overflow: hidden;
width: 100%;
height: auto; /*calc(100% - 86px - 29px)*/
background-color: #1a1a1a;
}
.container-inner {
height: 100%;
max-width: 1100px;
margin: 0 auto;
}
.container img {
max-height: 100%;
min-width: 100%;
height: 100%;
}
.container video {
max-height: 100%;
min-width: 100%;
height: 100%;
}
footer {
background: #1a1a1a;
width: 100%;
}
.social {
list-style-type: none;
text-align: center;
}
.social li {
display: inline;
}
.social i {
font-size: 460%;
margin: 1%;
padding: 5% 5% 5% 4%;
color: #707b7c
}
.social i:hover {
color: #f5f5f5;
}
footer.second {
background-color: #424949;
margin: 0;
}
footer.second p {
margin: 4px 0 0 0; /*top right bottom left*/
padding: 0 0 0 0;
text-align: left;
font-size: 130%;
font-family: 'Alegreya Sans', sans-serif;
}
/*--------MEDIA--------*/
@media screen and (max-width: 768px) {
h2 {
font-size: 150%;
}
p {
font-size: 120%;
}
header {
position: absolute;
}
#logo {
margin: -5px 5px -5px 5px;
background: url(img/logohead64x.png) no-repeat center;
}
#menu-icon {
display: inline-block;
}
nav {
padding: 25px;
}
nav ul, nav:active ul {
display: none;
z-index: 1;
position: absolute;
padding: 20px;
background: #1a1a1a;
right: 20px;
top: 60px;
border: 3px solid #ffffff;
border-radius: 10px 0 10px 10px;
width: 40%;
}
nav:hover ul {
display: block;
}
nav li {
text-align: center;
width: 100%;
padding: 10px 0 10px 0;
}
.banner {
padding-top: 86px;
}
.social i {
font-size: 180%;
}
}<!-- Home page of slothy.cloud -->
<!DOCTYPE html>
<html>
<!--
My small cozy website.
© veryslothysloth 2018
-->
<head>
<!-- Links -->
<link rel="apple-touch-icon" sizes="180x180" href="img/favicon/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="img/favicon/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="img/favicon/favicon-16x16.png">
<link rel="manifest" href="site.webmanifest">
<link rel="mask-icon" href="img/favicon/safari-pinned-tab.svg" color="#2e86c1">
<link rel="stylesheet" type="text/css" href="style.css">
<link rel="stylesheet" href="css/font-awesome.min.css">
<!-- Open Graph Protocol -->
<meta property="og:url" content="://slothy.cloud" />
<meta property="og:type" content="website" />
<meta property="og:title" content="slothy.cloud | by veryslothysloth" />
<meta property="og:description" content="A small slothy website." />
<meta property="og:image" content="img/slothyicon.png" />
<meta property="og:image:secure_url" content="img/slothyicon.png" />
<!-- Twitter card -->
<meta name="twitter:card" content="summary">
<meta name="twitter:title" content="slothy.cloud |by veryslothysloth">
<meta name="twitter:description" content="A small slothy website.">
<meta name="twitter:image" content="img/slothyicon.png">
<meta name="twitter:image:src" content="img/slothyicon.png">
<!-- Data -->
<title>slothy.cloud | by veryslothysloth</title>
<meta charset="utf-8">
<meta name="description" content="A small slothy website.">
<meta name="keywords" content="sloth,slothy,veryslothysloth,file,upload,hosting,lolisafe">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<meta name="msapplication-TileColor" content="#2d89ef">
<meta name="theme-color" content="#aed6f1">
</head>
<body>
<header>
<!-- Header -->
<div id="header-inner">
<a href="index.html" id="logo"></a>
<nav>
<a href="#" id="menu-icon"></a>
<ul>
<li><a href="index.html" class="current">Home</a></li>
<li><a href="#">Cloud</a></li>
<li><a href="#">Stat</a></li>
<li><a href="#">Contact</a></li>
</ul>
</nav>
</div>
</header>
<!-- Main Body -->
<div class="container">
<video loop>
<source src="img/alley.mp4" type="video/mp4">
</video>
<!--<div class="container-inner">
<p>Test Text</p>
</div>-->
</div>
<!-- Footer -->
<footer>
<ul class="social">
<li><a href="https://twitter.com/veryslothysloth" target="_blank"><i class="fa fa-twitter"></i></a></li>
<li><a href="https://www.instagram.com/veryslothysloth/" target="_blank"><i class="fa fa-instagram"></i></a></li>
<li><a href="https://steamcommunity.com/id/veryslothysloth" target="_blank"><i class="fa fa-steam"></i></a></li>
<li><a href="mailto:[email protected]" target="_blank"><i class="fa fa-at"></i></a></li>
</ul>
</footer>
<!-- Second Footer -->
<footer class="second">
<p>© veryslothysloth</p>
</footer>
</body>
</html>这可能是一个完全愚蠢的错误或小打字错误，但我很累，似乎无法解决这一点，我自己与我真正有限的编码技能。。。我对这一切都很陌生。提前谢谢！
最佳答案
div.容器位于导航和菜单图标上。所以盘旋不起作用。
将z索引添加到头中以解决该问题
header {
z-index: 99;
}