.bind{top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5)}.bind,.bind-user{position:absolute}.bind-user{background-color:#fff;width:800px;max-width:90%;top:49%;left:50%;transform:translate(-50%,-50%);padding:40px 20px;box-sizing:border-box;text-align:center}.bind-user .el-button--big,.bind-user .el-input--big{width:340px;max-width:100%;display:block;margin:auto}.bind-user h1{font-size:32px;padding:30px 0 10px}.bind-user h1,.bind-user h5{font-weight:500;color:#303133}.bind-user h5{font-size:18px;line-height:1.5}.bind-user .form{padding:40px 0 4%}@media only screen and (min-width:768px){.bind-user{top:46%}.bind-user h1{font-size:34px}}