.main_form{width:350px;padding-bottom:20px;background-color:#eee;position:absolute;left:50%;top:45%;-webkit-transform:translateX(-50%) translateY(-50%);transform:translateX(-50%) translateY(-50%);border-radius:5px}.input-box{width:300px;margin:0 auto;padding-top:30px}.main_btn{width:200px;margin:0 auto;padding-top:20px}.main_btn .el-button{width:200px;font-size:14px;background:#2154fa;-webkit-filter:brightness(1.4);filter:brightness(1.4)}