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):

Document

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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; } }

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