CSS3 implements responsive accordion
Recently I watched a video of a foreign master using CSS3 to achieve the accordion effect, so I wrote it after studying it and recorded it in the form of a blog to facilitate my future review. The code structure is as follows ( The font used is Genericons):
Video tutorial recommendation: "CSS Video Tutorial-Jade Girl Heart Sutra Edition"
The final effect is as follows:
When full screen:
When the screen width is less than 960px:
Let’s take a look at the basic structure of the page (index.html):
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<p class="container">
<!--标题-->
<header>
<h1>Follow me on social media</h1>
</header>
<!--手风琴部分-->
<ul class="accordion">
<li class="tab">
<p class="social youtube">
<a href="#">YouTube</a>
</p>
<p class="content">
<h1>YouTube</h1>
<p>Lorem ipsum dolor sit amet consectetur
adipisicing elit.Culpa, consectetur.</p>
</p>
</li>
<li class="tab">
<p class="social facebook">
<a href="#">Facebook</a>
</p>
<p class="content">
<h1>Facebook</h1>
<p>Lorem ipsum dolor sit amet consectetur
adipisicing elit.Culpa, consectetur.</p>
</p>
</li>
<li class="tab">
<p class="social twitter">
<a href="#">Twitter</a>
</p>
<p class="content">
<h1>Twitter</h1>
<p>Lorem ipsum dolor sit amet consectetur
adipisicing elit.Culpa, consectetur.</p>
</p>
</li>
<li class="tab">
<p class="social instagram">
<a href="#">Instagram</a>
</p>
<p class="content">
<h1>Instagram</h1>
<p>Lorem ipsum dolor sit amet consectetur
adipisicing elit.Culpa, consectetur.</p>
</p>
</li>
<li class="tab">
<p class="social linkedin">
<a href="#">Linkedin</a>
</p>
<p class="content">
<h1>Linkedin</h1>
<p>Lorem ipsum dolor sit amet consectetur
adipisicing elit.Culpa, consectetur.</p>
</p>
</li>
<li class="tab">
<p class="social github">
<a href="#">Github</a>
</p>
<p class="content">
<h1>Github</h1>
<p>Lorem ipsum dolor sit amet consectetur
adipisicing elit.Culpa, consectetur.</p>
</p>
</li>
</ul>
</p>
</body>
</html>Style (style.css):
*{
margin: 0;
padding: 0;
border: none;
}
body{
font-family: Arial, Helvetica, sans-serif;
background-color: #222;
color: #fff;
}
/*设置字体,因为后面的图标需要用到*/
@font-face {
font-family: 'Genericons';
src: url('font/genericons-regular-webfont.woff') format('woff'),
url('font/genericons-regular-webfont.eot') format('truetype');
}
/*设置外面容器的宽度*/
.container{
width: 80%;
margin: 20px auto;
}
header h1{
font-size: 2rem;
padding: 1rem;
text-align: center;
}
/*注意这里font-size设置为0,不然会出现非常糟糕的画面,我们后面再去单独对需要现实的文本设置字体大小
,因为a链接不想让它显示内容*/
.accordion{
width: 100%;
min-width: 800px;
height: 200px;
background-color: #333;
list-style: none;
display: block;
overflow: hidden;
font-size: 0;
}
/*对每一个li设置为inline-block,让其排列在一行,溢出隐藏,因为.tab下面的.content宽度为360,而且.tab只有在hover的时候宽度才会变成450px,那时候.content刚好显示.另外设置过渡,使其宽度增长的过程平缓*/
.tab{
width: 80px;
height: 100%;
display: inline-block;
position: relative;
margin: 0;
background-color: #444;
border: 1px solid #333;
overflow: hidden;
transition: all .5s ease .1s;
}
.tab:hover{
width: 450px;
}
.tab:hover .social a:after{
transform: translateX(-80px);
}
.tab:hover .social a:before{
transform: translateX(-100px);
}
/*设置定位为相对定位,不然.content会有部分内容被遮住*/
.tab .content{
position: relative;
width: 360px;
height: 100%;
background-color: #fff;
color: #333;
margin-left: 80px;
padding: 50px 0 0 15px;
}
.tab .content h1{
font-size: 2.5rem;
margin-top: 20px;
}
.tab .content p{
font-size: .85rem;
line-height: 1.6;
}
/设置为元素的宽高及字体为Genericons,不然图标无法显现,只会显示白色的空框框/
.social a:before,
.social a:after{
position: absolute;
width: 80px;
height: 200px;
display: block;
text-indent: 0;
padding-top: 90px;
padding-left: 25px;
font:normal 30px Genericons;
color: #fff;
transition: all .5s ease;
}
/*因为当我们hover上去的时候图标会更大,所以after伪类的字体及padding要重新设置,同时
要将margin-left设置为80px,这要默认情况下显示的就是before伪类的小图标*/
.social a:after{
font-size: 48px;
padding-top: 80px;
padding-left: 20px;
margin-left: 80px;
}
/*Add icons*/
.youtube a:before,
.youtube a:after{
content: '\f213';
}
.youtube a:after{
background-color: #fc0000;
}
.twitter a:before,
.twitter a:after{
content: '\f202';
}
.twitter a:after{
background-color: #6dc5dd;
}
.facebook a:before,
.facebook a:after{
content: '\f204';
}
.facebook a:after{
background-color: #3b5998;
}
.linkedin a:before,
.linkedin a:after{
content: '\f208';
}
.linkedin a:after{
background-color: #00a9cd;
}
.instagram a:before,
.instagram a:after{
content: '\f215';
}
.instagram a:after{
background-color: #6dc993;
}
.github a:before,
.github a:after{
content: '\f200';
}
.github a:after{
background-color: #6e5494;
}
/*当屏幕最大宽度为960px时*/
@media(max-width:960px){
.container{
width: 70%;
}
/*让高度为auto*/
.accordion{
min-width: 450px;
height: auto;
}
/*让li显示为block,这样就会依次往下排*/
.tab{
width: 100%;
display: block;
border-bottom: 1px solid #333;
}
/*这个一定要设置,因为原本的.tab:hover时宽度为450px,假如.tab的宽度有600px,在hover时就回剩余150px的空白,不是我们想要的效果*/
.tab:hover{
width: 100%;
}
.tab .content{
width: 85%;
}
/*设置对应伪类的padding值,使其大概显示在中间*/
.social a:before{
padding-top: 60px;
padding-left: 25px;
}
.social a:after{
padding-top: 50px;
padding-left: 20px;
}
}Recommended tutorial: "CSS Tutorial"
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