<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>选择绑定方式</title>
</head>
<style>
*{
    background-color: #3E4453;
    color: #f6f5f7;
}

h1,h2{
    color: #f6f5f7;
    font-size: 2.5em;
}

.pad{
    border-radius: 15px;
    background: #3E4453;
    box-shadow:  34px 34px 41px #383d4b,
                -34px -34px 41px #444b5b;
    }

.choosePad{
    width: 50em;
    height: 33.5em;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margi