Question

我一直在创建一个我正在创建的新网站主题的问题，直到我向下滚动才发生这种情况。这是问题所在。我创建了一个固定菜单（无论你在页面上哪个位置都会粘在页面顶部）。向下滚动时，菜单会转到内容框的下方。我也找不到解决方案。无论如何，我不是专业的html或css web开发人员。

来源：

文件：Header.php

<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css" href="interface/css/style.css">


</head>
<script type="text/javascript" src="interface/js/jquery-1.9.1.js"></script>
<script type="text/javascript">
$(document).ready(function(){


$('a').mouseout(function() {
$(this).stop().animate({
    opacity:'0.7'
  });
});
$('a').mouseover(function() {
$(this).stop().animate({
    opacity:'1'
  });
});

$('#header-container > a').mouseout(function() {
$(this).stop().animate({
    opacity:'0.7'
  });
});
$('#header-container > a').mouseover(function() {
$(this).stop().animate({
    opacity:'1'
  });
});


});
</script>
<div id="header-container">
<div id="header-image" align="center"><a href="#"><img src="interface/images/interface/header.png" title="Home"></a></div>

<div id="header-social">
<a id="icon" href="#"><img src="interface/images/icons/facebook.png" title="Facebook"></a>
<a id="icon" href="#"><img src="interface/images/icons/twitter.png" title="Twitter"></a>
<a id="icon" href="#"><img src="interface/images/icons/blog.png" title="Blog"></a>
</div>

<div id="header-bottom"></div>
<div id="menu">

<ul><a class="text" href="#" title="">Home</a></ul>
<ul><a class="text" href="#" title="">About</a></ul>
<ul><a class="text" href="#" title="">Articles</a></ul>
<ul><a class="text" href="#" title="">Videos</a></ul>
<ul><a class="text" href="#" title="">Tutorials</a></ul>
<ul><a class="text" href="#" title="">Downloads</a></ul>
<ul><a class="text" href="#" title="">Contact</a></ul>
<ul><a class="text" href="#" title="">Help</a></ul>

</div>
</div>

<body>
<div id="main-container">

文件：index.php

    <div id="container">
<div id="content-container">
lorem ipsum
</div>
</div>

文件：Footer.php

<!--Footer Container-->
</body>
</div>

</html>

CSS样式：style.css：

@font-face { font-family: myriad; src: url('../font/MYRIADPRO-REGULAR.OTF'); }

/*HTML Ententites*/

html{
    margin:0;
    left: 0;
    right: 0;
    top:0;
    bottom: 0;
    position: absolute;
    font-family: myriad;
    color: white;
}
body{
    background:white;
}

a{
    text-decoration: none;
    color: white;
}
/*Containers*/
#header-container{
    background:#202020;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 100px;
}
#header-bottom{
height: 1px;
width: auto;
background:#8A8A8A;
position: absolute;
bottom: 0px;
left: 0px;
right: 0px;
box-shadow: 0 0 50px 5px rgba(255,255,255,.5);
}

#header-image{
    position: absolute;
    top:70px;
    left:300px;
    cursor: pointer;
    opacity: .7;
}
#header-social{
    position: absolute;
    right:0px;
    top:50px;
}
#header-social > #icon{
    opacity: .7;
}
#header-social > #icon:hover{
    background: url('../images/icons/icon-hover.png') no-repeat;
    opacity: 1;
}

#main-container{
    background:#454545;
    margin-left: -10px;
    margin-right: -8px;
    height: 1500px;
}

#menu{
position: fixed;
top:0px;
left: 0px;
right: 0px;
height: 50px;
background: rgba(0,0,0,.5);

}
#menu > ul{
    display: inline-block;
    background: rgba(10,174,254,.8);
    height:40px;
    cursor: pointer;
    margin: 5px 0px 10px 0px;
    width: 100px;
    text-decoration: none;
    font-size: 20px;
    font-family: myriad;
}
#menu > ul:hover{
    background: rgba(10,174,254,1);
}
#menu > ul > .text{
    text-align: left;
    color: white;
    text-decoration: none;
    opacity: .7;

}

#container{
    position: absolute;
    right: 500px;
    left: 10px;
    margin-top:250px;
    background-clip: content-box;
}
#content-container{
    background:#646464;
    padding: 20px;
    height: 200px;
    overflow: auto;
    border-bottom:3px solid #2B312D;
    border-left:3px solid #2B312D;
    border-right:3px solid #2B312D;
    box-shadow: inset 0 0 10px 0px rgba(0,0,0,0.5);
    border-bottom-left-radius:3px;
    border-bottom-right-radius:3px;
}
#content-header{

}

我认为问题必须在CSS的菜单中。我不认为它在html中正确分层，但是我再次分层，我还在学习。 :) 提前谢谢。

LIVE VIEW 向下滚动内容框。

Answer 1

将z-index设置为2。

#menu {
    position: fixed;
    top: 0px;
    left: 0px;
    right: 0px;
    height: 50px;
    background: rgba(0,0,0,.5);
    z-index: 2;
}

Answer 2

只需在菜单中添加z-index 。

<强> CSS

#menu {
z-index: 99999;
}

HTML / CSS修复菜单错误 - 修复

2 个答案: