CSS 如何停止我的下拉菜单将我的页面内容向下推？
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时间：2020-08-29 20:42:22 来源:igfitidea点击:
How do i stop my drop down menu pushing my content of my page down?
提问by Pomster
I have a drop down menu, but when i click drop down it pushed my contents down as well.
我有一个下拉菜单，但是当我单击下拉菜单时，它也会将我的内容向下推。
I would like my menu to slide over the context part of my web page. Could some one please show me how i can set this?
我希望我的菜单滑过我网页的上下文部分。有人可以告诉我如何设置吗？
CSS
CSS
body {
font-size: 100%;
background:#32373d;
}
a {
text-decoration: none;
}
ul, ul ul {
margin: 0;
padding: 0;
list-style: none;
}
#wrapper {
width: 220px;
margin: 100px auto;
font-size: 0.8125em;
}
.menu {
width: 225px;
height: auto;
-webkit-box-shadow: 0px 1px 3px 0px rgba(0,0,0,.73), 0px 0px 18px 0px rgba(0,0,0,.13);
-moz-box-shadow: 0px 1px 3px 0px rgba(0,0,0,.73), 0px 0px 18px 0px rgba(0,0,0,.13);
box-shadow: 0px 1px 3px 0px rgba(0,0,0,.73), 0px 0px 18px 0px rgba(0,0,0,.13);
}
.menu > li > a {
background-color: #616975;
background-image: -webkit-gradient(linear, left top, left bottom, from(rgb(114, 122, 134)),to(rgb(80, 88, 100)));
background-image: -webkit-linear-gradient(top, rgb(114, 122, 134), rgb(80, 88, 100));
background-image: -moz-linear-gradient(top, rgb(114, 122, 134), rgb(80, 88, 100));
background-image: -o-linear-gradient(top, rgb(114, 122, 134), rgb(80, 88, 100));
background-image: -ms-linear-gradient(top, rgb(114, 122, 134), rgb(80, 88, 100));
background-image: linear-gradient(top, rgb(114, 122, 134), rgb(80, 88, 100));
filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,StartColorStr='#727a86', EndColorStr='#505864');
border-bottom: 1px solid #33373d;
-webkit-box-shadow: inset 0px 1px 0px 0px #878e98;
-moz-box-shadow: inset 0px 1px 0px 0px #878e98;
box-shadow: inset 0px 1px 0px 0px #878e98;
width: 100%;
height: 2.75em;
line-height: 2.75em;
text-indent: 2.75em;
display: block;
position: relative;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
font-weight: 600;
color: #fff;
text-shadow: 0px 1px 0px rgba(0,0,0,.5);
}
.menu ul li a {
background: #fff;
border-bottom: 1px solid #efeff0;
width: 100%;
height: 2.75em;
line-height: 2.75em;
text-indent: 2.75em;
display: block;
position: relative;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
font-size: 0.923em;
font-weight: 400;
color: #878d95;
}
.menu ul li:last-child a {
border-bottom: 1px solid #33373d;
}
.menu > li > a:hover, .menu > li > a.active {
background-color: #35afe3;
background-image: -webkit-gradient(linear, left top, left bottom, from(rgb(69, 199, 235)),to(rgb(38, 152, 219)));
background-image: -webkit-linear-gradient(top, rgb(69, 199, 235), rgb(38, 152, 219));
background-image: -moz-linear-gradient(top, rgb(69, 199, 235), rgb(38, 152, 219));
background-image: -o-linear-gradient(top, rgb(69, 199, 235), rgb(38, 152, 219));
background-image: -ms-linear-gradient(top, rgb(69, 199, 235), rgb(38, 152, 219));
background-image: linear-gradient(top, rgb(69, 199, 235), rgb(38, 152, 219));
filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,StartColorStr='#45c7eb', EndColorStr='#2698db');
border-bottom: 1px solid #103c56;
-webkit-box-shadow: inset 0px 1px 0px 0px #6ad2ef;
-moz-box-shadow: inset 0px 1px 0px 0px #6ad2ef;
box-shadow: inset 0px 1px 0px 0px #6ad2ef;
}
.menu > li > a.active {
border-bottom: 1px solid #1a638f;
}
.menu > li > a:before {
content: '';
background-image: url(../images/sprite.png);
background-repeat: no-repeat;
font-size: 36px;
height: 1em;
width: 1em;
position: absolute;
left: 0;
top: 50%;
margin: -.5em 0 0 0;
}
.item1 > a:before {
background-position: 0 0;
}
.item2 > a:before {
background-position: -38px 0;
}
.item3 > a:before {
background-position: 0 -38px;
}
.item4 > a:before {
background-position: -38px -38px;
}
.item5 > a:before {
background-position: -76px 0;
}
.menu > li > a span {
font-size: 0.857em;
display: inline-block;
position: absolute;
right: 1em;
top: 50%;
background: #48515c;
line-height: 1em;
height: 1em;
padding: .4em .6em;
margin: -.8em 0 0 0;
color: #fff;
text-indent: 0;
text-align: center;
-webkit-border-radius: .769em;
-moz-border-radius: .769em;
border-radius: .769em;
-webkit-box-shadow: inset 0px 1px 3px 0px rgba(0, 0, 0, .26), 0px 1px 0px 0px rgba(255, 255, 255, .15);
-moz-box-shadow: inset 0px 1px 3px 0px rgba(0, 0, 0, .26), 0px 1px 0px 0px rgba(255, 255, 255, .15);
box-shadow: inset 0px 1px 3px 0px rgba(0, 0, 0, .26), 0px 1px 0px 0px rgba(255, 255, 255, .15);
text-shadow: 0px 1px 0px rgba(0,0,0,.5);
font-weight: 500;
}
.menu > li > a:hover span, .menu > li a.active span {
background: #2173a1;
}
.menu > li > ul li a:before{
content: '?';
font-size: 8px;
color: #bcbcbf;
position: absolute;
width: 1em;
height: 1em;
top: 0;
left: -2.7em;
}
.menu > li > ul li:hover a,
.menu > li > ul li:hover a span,
.menu > li > ul li:hover a:before {
color: #32373D;
}
.menu ul > li > a span {
font-size: 0.857em;
display: inline-block;
position: absolute;
right: 1em;
top: 50%; /
background: #fff;
border: 1px solid #d0d0d3;
line-height: 1em;
height: 1em;
padding: .4em .7em;
margin: -.9em 0 0 0;
color: #878d95;
text-indent: 0;
text-align: center;
-webkit-border-radius: .769em;
-moz-border-radius: 769em;
border-radius: 769em;
text-shadow: 0px 0px 0px rgba(255,255,255,.01));
}
Html
html
<link rel="stylesheet" type="text/css" href="../../Content/Menu.css" />
<div class="float-right">
<nav>
<ul class="menuMain" style="float: left;">
<li class="item1"><a href="#" class="">Home</a>
<ul style="display: block; ">
<li class="subitem1"><a class="active" href="/DashBoard">DashBoard</a></li>
<li class="subitem2"><a href="/Home/Contact">Contact</a></li>
<li class="subitem3"><a href="/Home/About">About</a></li>
</ul>
</li>
<li class="item2"><a href="#" class="">Functions</a>
<ul style="display: block; ">
<li class="subitem1"><a href="/Home/Download?token=f09e0c76-c06f-44da-8811-07af92f0dd7d">Download</a></li>
<li class="subitem2"><a href="/Home/ReturnProperties?token=f09e0c76-c06f-44da-8811-07af92f0dd7d">Valuation</a></li>
</ul>
</li>
<li class="item3"><a href="#" class="">Admin</a>
<ul style="display: block; ">
<li class="subitem1"><a href="/Admin">Admin</a></li>
</ul>
<li>
<li class="item4"><a href="#" class="">Logout</a>
<ul style="display: block; ">
<li class="subitem1"><a href="/Home/Logout">Logout</a></li>
</ul>
<li>
</ul>
</nav>
</div>
回答by daveyfaherty
The dropdown menu should be using position: absolutefor positioning.
下拉菜单应该position: absolute用于定位。
For reference, use this: http://www.htmldog.com/articles/suckerfish/dropdowns/
作为参考，请使用：http: //www.htmldog.com/articles/suckerfish/dropdowns/
回答by mr_lewjam
I actually posted a question about this a few days ago and managed to solve it, CSS dropdown nav causing html content to move
几天前我实际上发布了一个关于此的问题并设法解决了它，CSS下拉导航导致html内容移动
Hopefully this will be of used to you, my problem was solved by adding z-index:1000to the submenu ul's css
希望这对你有用，我的问题是通过添加z-index:1000到子菜单 ul 的 css 解决的
