原文代码：https://segmentfault.com/a/1190000014768534#articleHeader1
HTML代码：
<html> <head> <link rel="stylesheet" href="index.css"> </head> <body> <div class="card"> <h2>Development Skills</h2> <p class="skill html"> <span>HTML5</span> <span class="level">90%</span> </p> <p class="skill css"> <span>CSS</span> <span class="level">95%</span> </p> <p class="skill javascript"> <span>JavaScript</span> <span class="level">80%</span> </p> <p class="skill svg"> <span>SVG</span> <span class="level">60%</span> </p> <p class="skill canvas"> <span>Canvas</span> <span class="level">75%</span> </p> </div> </body></html>
CSS代码：
html, body { margin: 0; padding: 0; height: 100%; display: flex; justify-content: center; align-items: center; /* linear-gradient：线性梯度；dimgray:暗灰色； silver: 银色 */ background: linear-gradient(dimgray, silver, silver, dimgray);}.card{ width:400px; background: linear-gradient(#333, dimgray); /* 并排放置两个带边框的框 */ box-sizing: border-box; padding: 20px; font-family: sans-serif; color: white; /* 单个字符间间距 */ letter-spacing: 0.1em; /* 添加阴影 水平位置 垂直位置 模糊距离 颜色 */ box-shadow: 0 20px 50px rgba(0,0,0,0.5);}.card h2{ /* 字母: 大写 */ text-align: center; text-transform: uppercase;}.card .skill{ height: 50px;}.card .skill span{ display: block;}.card .skill .level{ transform: translateY(-1em); text-align: right; position: relative;}/* 用伪元素画出条形图 */.card .skill .level::before,.card .skill .level::after{ content: ‘‘; width: 100%; height: 100%; position: absolute; top: 1.2em; left: 0;}.card .skill .level::before{ border: 1px solid mediumspringgreen; border-radius: 0.2em; height: 105%;}.card .skill .level::after{ background-image: linear-gradient(to right,mediumspringgreen,mediumspringgreen); background-repeat: no-repeat; background-position: top 0.1em left 0.1em;}/* 设置条形图的填充比例 */.card .html .level::after { background-size: 90% 1em;}.card .css .level::after { background-size: 95% 1em;}.card .javascript .level::after { background-size: 80% 1em;}.card .svg .level::after { background-size: 60% 1em;}.card .canvas .level::after { background-size: 75% 1em;}.card .skill:hover { background-color: #333;}
