我目前正在学习如何创建下拉菜单,但不确定如何使用下拉菜单。我试着阅读其他问题和解决方案,但无济于事。这是我的代码:
<body>
<div class="nav">
<ul>
<li><a href="home.html">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Programmes</a></li>
<ul>
<li><a href="#">Item1</a></li>
<li><a href="#">Item2</a></li>
<li><a href="#">Item3</a></li>
<li><a href="#">Item4</a></li>
<li><a href="#">Item5</a></li>
<li><a href="#">Item6</a></li>
<li><a href="#">Item7</a></li>
<li><a href="#">Item8</a></li>
</ul>
<li><a href="#">Staff</a></li>
<li><a href="#">Students</a></li>
<li><a href="#">Contact</a></li>
</ul>
</div> <!-- end of nav -->
答案 0 :(得分:1)
<ul>
<li><a href="home.html">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Programmes</a></li>
<ul>
<li><a href="#">Item1</a></li>
<li><a href="#">Item2</a></li>
<li><a href="#">Item3</a></li>
<li><a href="#">Item4</a></li>
<li><a href="#">Item5</a></li>
<li><a href="#">Item6</a></li>
<li><a href="#">Item7</a></li>
<li><a href="#">Item8</a></li>
</ul>
<li><a href="#">Staff</a></li>
<li><a href="#">Students</a></li>
<li><a href="#">Contact</a></li>
</ul>
<强> CSS 强>
ul
{
font-family: Arial, Verdana;
font-size: 14px;
margin: 0;
padding: 0;
list-style: none;
}
ul li
{
display: block;
position: relative;
float: left;
}
li ul
{
display: none;
}
ul li a
{
display: block;
text-decoration: none;
color: #ffffff;
border-top: 1px solid #ffffff;
padding: 5px 15px 5px 15px;
background: #2C5463;
margin-left: 1px;
white-space: nowrap;
}
ul li a:hover
{
background: #617F8A;
}
li:hover ul
{
display: block;
position: absolute;
}
li:hover li
{
float: none;
font-size: 11px;
}
li:hover a
{
background: #617F8A;
}
li:hover li a:hover
{
background: #95A9B1;
}
这是fiddle
如需进一步参考,请访问this链接
答案 1 :(得分:1)
尝试此链接....完整说明.. Click Here
或者只是复制粘贴以下CSS
.nav ul ul {
display: none;
}
.nav ul li:hover > ul {
display: block;
}
.nav ul {
background: #efefef;
background: linear-gradient(top, #efefef 0%, #bbbbbb 100%);
background: -moz-linear-gradient(top, #efefef 0%, #bbbbbb 100%);
background: -webkit-linear-gradient(top, #efefef 0%,#bbbbbb 100%);
box-shadow: 0px 0px 9px rgba(0,0,0,0.15);
padding: 0 20px;
border-radius: 10px;
list-style: none;
position: relative;
display: inline-table;
}
.nav ul:after {
content: ""; clear: both; display: block;
}
.nav ul li {
float: left;
}
.nav ul li:hover {
background: #4b545f;
background: linear-gradient(top, #4f5964 0%, #5f6975 40%);
background: -moz-linear-gradient(top, #4f5964 0%, #5f6975 40%);
background: -webkit-linear-gradient(top, #4f5964 0%,#5f6975 40%);
}
.nav ul li:hover a {
color: #fff;
}
.nav ul li a {
display: block; padding: 25px 40px;
color: #757575; text-decoration: none;
}
.nav ul ul {
background: #5f6975; border-radius: 0px; padding: 0;
position: absolute; top: 100%;
}
.nav ul ul li {
float: none;
border-top: 1px solid #6b727c;
border-bottom: 1px solid #575f6a;
position: relative;
}
.nav ul ul li a {
padding: 15px 40px;
color: #fff;
}
.nav ul ul li a:hover {
background: #4b545f;
}
.nav ul ul ul {
position: absolute; left: 100%; top:0;
}
我更新了你的好话。换了一个小小的变化。 FIDDLE
答案 2 :(得分:0)
的 Demo 强>
HTML
<div id="cssmenu">
<ul>
<li class="active"><a href="#"><span>Home</span></a></li>
<li class="has-sub"><a href="#"><span>Programmes</span></a>
<ul>
<li class="has-sub"><a href="#"><span>Item 1</span></a>
<ul>
<li><a href="#"><span>Sub Item 1</span></a></li>
<li class="last"><a href="#"><span>Sub Item 2</span></a></li>
</ul>
</li>
<li class="has-sub"><a href="#"><span>Item 2</span></a>
<ul>
<li><a href="#"><span>Sub Item 1</span></a></li>
<li class="last"><a href="#"><span>Sub Item 2</span></a></li>
</ul>
</li>
</ul>
</li>
<li><a href="#"><span>Staff</span></a></li>
<li><a href="#"><span>Students</span></a></li>
<li class="last"><a href="#"><span>Contact</span></a></li>
</ul>
</div>
CSS
#cssmenu{
width:100%;
}
#cssmenu,
#cssmenu ul,
#cssmenu ul li,
#cssmenu ul li a {
padding: 0;
margin: 0;
line-height: 1;
font-family: 'Source Sans Pro', sans-serif;
font-weight: 500;
font-size: 16px;
color: #ffffff;
}
#cssmenu:before,
#cssmenu:after,
#cssmenu > ul:before,
#cssmenu > ul:after {
content: '';
display: table;
}
#cssmenu:after,
#cssmenu > ul:after {
clear: both;
}
#cssmenu a {
text-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
}
#cssmenu ul {
background: #3b5998;
border-radius: 3px;
border: 1px solid #2b4479;
border: 1px solid #2d4373;
-webkit-box-shadow: 0 1px 2px rgba(2, 2, 2, 0.25), inset 0 1px 1px rgba(255, 255, 255, 0.15);
-o-box-shadow: 0 1px 2px rgba(2, 2, 2, 0.25), inset 0 1px 1px rgba(255, 255, 255, 0.15);
-moz-box-shadow: 0 1px 2px rgba(2, 2, 2, 0.25), inset 0 1px 1px rgba(255, 255, 255, 0.15);
-ms-box-shadow: 0 1px 2px rgba(2, 2, 2, 0.25), inset 0 1px 1px rgba(255, 255, 255, 0.15);
box-shadow: 0 1px 2px rgba(2, 2, 2, 0.25), inset 0 1px 1px rgba(255, 255, 255, 0.15);
}
#cssmenu ul > li {
float: left;
list-style: none;
}
#cssmenu ul > li > a {
display: block;
text-decoration: none;
padding: 15px 44px;
position: relative;
}
#cssmenu ul > li > a:hover {
background: #2d4373;
-webkit-box-shadow: inset 0 0 1px #1e2e4f;
-o-box-shadow: inset 0 0 1px #1e2e4f;
-moz-box-shadow: inset 0 0 1px #1e2e4f;
-ms-box-shadow: inset 0 0 1px #1e2e4f;
box-shadow: inset 0 0 1px #1e2e4f;
-webkit-transition: all ease .3s;
-o-transition: all ease .3s;
-moz-transition: all ease .3s;
-ms-transition: all ease .3s;
transition: all ease .3s;
}
#cssmenu ul > li > a:hover:before {
content: '';
z-index: 2;
position: absolute;
border: 1px solid white;
border-top: 0;
border-bottom: 0;
border-right: 0;
width: 100%;
height: 100%;
top: 0;
left: -1px;
opacity: .2;
}
#cssmenu ul > li > a:hover:after {
content: '';
z-index: 2;
position: absolute;
border: 1px solid white;
border-top: 0;
border-bottom: 0;
border-left: 0;
width: 100%;
height: 100%;
top: 0;
right: -1px;
opacity: .2;
}
#cssmenu > ul > li > ul {
opacity: 0;
visibility: hidden;
position: absolute;
}
#cssmenu > ul > li:hover > ul {
opacity: 1;
visibility: visible;
position: absolute;
border-radius: 0 0 3px 3px;
-webkit-box-shadow: none;
-o-box-shadow: none;
-moz-box-shadow: none;
-ms-box-shadow: none;
box-shadow: none;
-webkit-transition: all ease 1s;
-o-transition: all ease 1s;
-moz-transition: all ease 1s;
-ms-transition: all ease 1s;
transition: all ease 1s;
}
#cssmenu > ul > li > ul {
width: 200px;
position: absolute;
}
#cssmenu > ul > li > ul > li {
float: none;
position: relative;
}
#cssmenu > ul > li > ul > li > ul {
opacity: 0;
visibility: hidden;
position: absolute;
}
#cssmenu > ul > li > ul > li:hover > ul {
opacity: 1;
visibility: visible;
position: absolute;
-webkit-transition: all ease 1s;
-o-transition: all ease 1s;
-moz-transition: all ease 1s;
-ms-transition: all ease 1s;
transition: all ease 1s;
}
#cssmenu > ul > li > ul > li > ul {
left: 200px;
top: 1px;
width: 200px;
}
#cssmenu > ul > li > ul > li > ul > li {
float: none;
}
答案 3 :(得分:0)
通过修改代码来完成:
.nav ul {
margin: 0px;
padding: 0px;
list-style-type: none;
li {
float: left;
a {
display: inline-block;
width: 100px;
height: 30px;
line-height: 30px;
color: #FFF;
background-color: #999999;
text-decoration: none;
padding: 0 15px;
&:hover {
background-color: #CCCCCC;
}
&:active {
background-color: #66CCFF;
}
}
ul {
display: none;
}
&:hover {
ul {
display: list-item;
list-style-type: none;
li {
float: none;
a {
display: block;
}
}
}
}
}
}
<div class="nav">
<ul>
<li><a href="home.html">Home</a></li>
<li><a href="#">About</a></li>
<li>
<a href="#">Programmes</a>
<ul>
<li><a href="#">Item1</a></li>
<li><a href="#">Item2</a></li>
<li><a href="#">Item3</a></li>
<li><a href="#">Item4</a></li>
<li><a href="#">Item5</a></li>
<li><a href="#">Item6</a></li>
<li><a href="#">Item7</a></li>
<li><a href="#">Item8</a></li>
</ul>
</li>
<li><a href="#">Staff</a></li>
<li><a href="#">Students</a></li>
<li><a href="#">Contact</a></li>
</ul>
</div>
以下是 Demo