<!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>