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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Floating Box</title> </head> <body> <h1>GeeksForGeeks</h1> <div class="geeks"></div> </body> </html>
第1步:首先,我们完成了一些基本的样式设置,例如设置背景,创建外框并将所有内容对齐页面中心。
步骤2:现在,使用After选择器在我们创建的框下方创建一条细线,然后使用blur函数为其赋予阴影效果。
<style> body { background: green; } h1 { display: flex; justify-content: center; color: white; font-size: 40px; } .geeks { width: 400px; height: 250px; background: white; position: absolute; top: 16%; left: 35%; border-radius: 20px; } .geeks::after { content: ""; position: absolute; bottom: -30px; background: rgb(43, 42, 42); width: 90%; height: 4px; left: 3%; border-radius: 50%; filter: blur(3px); } </style><!DOCTYPE html> <html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content= "width=device-width,initial-scale=1.0"> <title>Floating Box</title> <style> body { background: green; } h1 { display:flex; justify-content: center; color: white; font-size: 40px; } .geeks { width:400px; height:250px; background: white; position: absolute; top:16%; left:35%; border-radius: 20px; } .geeks::after { content: ""; position: absolute; bottom: -30px; background: rgb(43, 42, 42); width: 90%; height:4px; left:3%; border-radius:50%; filter: blur(3px); } </style> </head><body> <h1>GeeksForGeeks</h1> <div class="geeks"></div> </body></html>

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