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HomeWeb Front-endHTML TutorialCSS3实现苹果电脑的DOCK菜单栏_html/css_WEB-ITnose

使用苹果电脑的朋友,都知道,在桌面的下方有个DOCK,就是一个存放应用程序的一栏.使用起来非常方便.这一栏的一些效果也是挺好看的.那我们今天就用CSS3来实现这个原理.

首先我们需要设计好DOCK栏结构,代码如下

代码名称

<ul>    <li id="menu1">        <a href="#menu1">            菜单一        </a>    </li>    <li id="menu2">        <a href="#menu2">            菜单二        </a>    </li>    <li id="menu3">        <a href="#menu3">            菜单三        </a>    </li></ul>

然后设置相关的展示效果CSS代码

代码名称

ul,li{    list-style: none;}ul{    margin: 0 auto;    width: 600px;    height: 300px;    background-color: #ff3300;    padding: 10px;    display: flex;    justify-content: center;    align-items: flex-end;}li{   display: inline-block;    margin: 5px;}li > a{    border: #eee 1px solid;    display: flex;    align-items: center;    justify-content: center;    width: 80px;    height: 80px;    color: #fff;    text-decoration: none;}

为什么代码里面都有一个id,a标签里面是#id名称呢?这里就是利用了:target伪类,来实现点击时,选中菜单栏的一个效果.

代码名称

li > a:hover,ul > li:target a{    width: 100px;    height: 100px;}ul > li:target{    position: relative;    animation: anims 1.5s ease-out;}

动画这里就是上下跳动的效果,非常简单.

代码名称

@keyframes anims {    0%{       top:0;    }    25%{       top:-20px;    }    50%{       top:0;    }    75%{       top:-20px;    }    100%{       top:0;    }}

接着是选中状态的显示,这里我就用一个 * 号来表示了,这里利用到伪元素 ::after.因为这个选中状态是在选择后才会显示,所以我们必须得在选中之后设置这个样式.

代码名称

ul > li:target:after{    position: absolute;    content: "*";    color: #fff;    width: 100%;    text-align: center;}

这个就是用CSS实现的DOCK菜单栏,这是最基本的原理,大家可以更加美化这个页面.经常代码我们还在后面^_^.

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