1. 效果图
2. 开始
准备一个元素,将元素左上角,右上角设为圆角。
<!DOCTYPE html><html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Document</title> <style> .tab { width: 150px; height: 40px; margin: 0 auto; background: #ed6a5e; border-radius: 10px 10px 0 0; } </style> </head> <body> <div class="tab"></div> </body></html>
然后要在左右两边拼接弧形,我们可以写两个伪元素
.tab::before,.tab::after { content: ""; position: absolute; width: 10px; height: 10px; bottom: 0;}.tab::before { left: -10px;}.tab::before { right: -10px;}
那怎么将这两个元素做成弧形呢,可以使用渐变。
.tab::before { background: radial-gradient(circle at 0 0, transparent 10px, #ed6a5e 10px);}.tab::after { background: radial-gradient(circle at 100% 0, transparent 10px, #ed6a5e 10px);}
这下我们有了弧形,那怎么做成效果图的样式呢,最后我们可以使用旋转。
.tab { transform: perspective(30px) rotateX(20deg); transform-origin: center bottom;}
3.完整代码
<!DOCTYPE html><html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Document</title> <style> .tab { width: 150px; height: 40px; margin: 0 auto; background: #ed6a5e; border-radius: 10px 10px 0 0; position: relative; transform: perspective(30px) rotateX(20deg); transform-origin: center bottom; } .tab::before, .tab::after { content: ""; position: absolute; width: 10px; height: 10px; bottom: 0; background: #000; } .tab::before { left: -10px; background: radial-gradient( circle at 0 0, transparent 10px, #ed6a5e 10px ); } .tab::after { right: -10px; background: radial-gradient( circle at 100% 0, transparent 10px, #ed6a5e 10px ); } </style> </head> <body> <div class="tab"></div> </body></html>