2017-03-01 51 views
0

如果我將設備的寬度降低到移動菜單,我無法使用我的內容菜單,因此菜單變得無法點擊。 Z指數不適合我。如何將移動菜單放置在內容上?

請問您能幫我嗎?

,代碼:

HTML:

<html> 
<head> 
</head> 
<body> 
<div class="bg"> 
<ul class="topnav" id="myTopnav"> 
    <li><a href="#home">Home</a></li> 
    <li><a href="#news">News</a></li> 
    <li><a href="#contact">Contact</a></li> 
    <li><a href="#about">About</a></li> 
    <li class="icon"> 
    <a href="javascript:void(0);" style="font-size:15px;" onclick="myFunction()">☰</a> 
    </li> 
</ul> 

<div class="div1"> 
</div> 
<div class="div2"> 
</div> 
</div> 
</body> 
</html> 

CSS:

html, body { 
    padding: 0; 
    margin: 0; 

} 
ul.topnav { 
    list-style-type: none; 
    margin: 0; 
    padding: 0; 
    overflow: hidden; 
    background-color: navbar; 
} 

ul.topnav li {float: left;} 

ul.topnav li a { 
    display: inline-block; 
    color: black; 
    text-align: center; 
    padding: 14px 16px; 
    text-decoration: none; 
    transition: 0.3s; 
    font-size: 17px; 
} 

ul.topnav li a:hover {background-color: #555;} 
ul.topnav li.icon {display: none;} 

@media screen and (max-width:680px) { 
    ul.topnav li {display: none;} 
    ul.topnav li.icon { 
    float: right; 
    display: inline-block; 
    } 
} 

@media screen and (max-width:680px) { 
    ul.topnav.responsive {position: relative;} 
    ul.topnav.responsive li.icon { 
    position: absolute; 
    right: 0; 
    top: 0; 
    } 
    ul.topnav.responsive li { 
    float: none; 
    display: inline; 
    } 
    ul.topnav.responsive li a { 
    display: block; 
    text-align: left; 
    } 
} 
.bg { 
margin: 0; 
padding: 0; 
background: lightgrey; 
position: relative; 
height: 500px; 
} 
.div1 
{ 
background: red; 
width: 100px; 
position: absolute; 
margin: 0 auto; 
height: 100px; 
bottom: 0; 
top: 100px; 
left: 0; 
right: 0; 
} 

.div2{ 
background: green; 
width: 100px; 
max-width: 100px; 
position: absolute; 
margin: 0 auto; 
height: 100px; 
bottom: 0; 
top: 300px; 
left: 0; 
right: 0; 
} 

JS:

function myFunction() { 
    var x = document.getElementById("myTopnav"); 
    if (x.className === "topnav") { 
    x.className += " responsive"; 
    } else { 
    x.className = "topnav"; 
    } 
} 

非常感謝您!

回答

0

z-index需要應用於ul.topnav,這將解決您的問題。

ul.topnav { 
    z-index: 99; 
} 

工作實施例:

function myFunction() { 
 
    var x = document.getElementById("myTopnav"); 
 
    if (x.className === "topnav") { 
 
    x.className += " responsive"; 
 
    } else { 
 
    x.className = "topnav"; 
 
    } 
 
}
html, 
 
body { 
 
    padding: 0; 
 
    margin: 0; 
 
} 
 

 
ul.topnav { 
 
    list-style-type: none; 
 
    margin: 0; 
 
    padding: 0; 
 
    overflow: hidden; 
 
    background-color: navbar; 
 
    z-index: 99; 
 
} 
 

 
ul.topnav li { 
 
    float: left; 
 
} 
 

 
ul.topnav li a { 
 
    display: inline-block; 
 
    color: black; 
 
    text-align: center; 
 
    padding: 14px 16px; 
 
    text-decoration: none; 
 
    transition: 0.3s; 
 
    font-size: 17px; 
 
} 
 

 
ul.topnav li a:hover { 
 
    background-color: #555; 
 
} 
 

 
ul.topnav li.icon { 
 
    display: none; 
 
} 
 

 
@media screen and (max-width:680px) { 
 
    ul.topnav li { 
 
    display: none; 
 
    } 
 
    ul.topnav li.icon { 
 
    float: right; 
 
    display: inline-block; 
 
    } 
 
} 
 

 
@media screen and (max-width:680px) { 
 
    ul.topnav.responsive { 
 
    position: relative; 
 
    } 
 
    ul.topnav.responsive li.icon { 
 
    position: absolute; 
 
    right: 0; 
 
    top: 0; 
 
    } 
 
    ul.topnav.responsive li { 
 
    float: none; 
 
    display: inline; 
 
    } 
 
    ul.topnav.responsive li a { 
 
    display: block; 
 
    text-align: left; 
 
    } 
 
} 
 

 
.bg { 
 
    margin: 0; 
 
    padding: 0; 
 
    background: lightgrey; 
 
    position: relative; 
 
    height: 500px; 
 
} 
 

 
.div1 { 
 
    background: red; 
 
    width: 100px; 
 
    position: absolute; 
 
    margin: 0 auto; 
 
    height: 100px; 
 
    bottom: 0; 
 
    top: 100px; 
 
    left: 0; 
 
    right: 0; 
 
} 
 

 
.div2 { 
 
    background: green; 
 
    width: 100px; 
 
    max-width: 100px; 
 
    position: absolute; 
 
    margin: 0 auto; 
 
    height: 100px; 
 
    bottom: 0; 
 
    top: 300px; 
 
    left: 0; 
 
    right: 0; 
 
}
<div class="bg"> 
 
    <ul class="topnav" id="myTopnav"> 
 
    <li><a href="/">Home</a></li> 
 
    <li><a href="/">News</a></li> 
 
    <li><a href="/">Contact</a></li> 
 
    <li><a href="/">About</a></li> 
 
    <li class="icon"> 
 
     <a href="javascript:void(0);" style="font-size:15px;" onclick="myFunction()">☰</a> 
 
    </li> 
 
    </ul> 
 

 
    <div class="div1"> 
 
    </div> 
 
    <div class="div2"> 
 
    </div> 
 
</div>

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