.form-box{position:fixed;top:2.5em;bottom:0;left:0;right:0}form{position:fixed;width:21em;top:50%;left:50%;margin-left:-10em;margin-top:-13em}form .header{text-align:center;font-size:1em!important}form .register-box{text-align:center;margin-top:1em}@media screen and (max-width: 512px){form{width:80%;margin-left:-40%}}.disabled{color:#ccc!important}
