css写手机图标的代码

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>CSS Phone Icon</title>
<style>
  .phone-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    border: 5px solid #000;
    position: relative;
  }
  .phone-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: #fff;
  }
  .phone-icon::after {
    content: '';
    position: absolute;
    top: 20%;
    left: 40%;
    width: 10px;
    height: 20px;
    border: solid #000;
    border-width: 0 3px 3px 0;
    transform: rotate(45deg);
  }
</style>
</head>
<body>
<div class="phone-icon"></div>
</body>
</html>