Task4
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>定位和居中问题|百度前端学院</title> <link rel="stylesheet" href="css/task4.css"> </head> <body> <div class="content"> <div class="content-top"> </div> <div class="content-bottom"> </div> </div> </body> </html>
.content{ width: 400px; height: 200px; background-color: #ccc; margin: 200px auto; position: relative; } .content-top{ position: absolute; width: 50px; height: 50px; background-color: #fc0; border-radius: 0 0 100% 0; top: 0; left: 0; } .content-bottom{ position: absolute; background-color: #ffcc00; width: 50px; height: 50px; border-radius: 100% 0 0 0; bottom: 0; right: 0; }