<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>bim01</title>
    <style>
        html,
        body {
            width: 100%;
            height: 100%;
            /*background-color: #043152;*/
            /*background-image: url("static/model/housing/maps/bg.jpg");*/
        }
        * {
            margin: 0;
            padding: 0;
        }
        .container {
            width: 100%;
            height: 100%;
        }
        .btns{
            width: 100%;
            height: 30px;
            position: absolute;
            left: 0;
            bottom: 100px;
            text-align: center;

        }
        .btns >button{
            display: inline-block;
        }
    </style>
</head>

<body>
    <div class="container"></div>
    <div class="btns">
        <button id="upload1">模型上传</button>
    </div>
</body>
</html>