dojo/public/users/reg/formr.css

section.hero{
  height: calc(100vh - 25px);
  min-height:730px;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size:cover;
  background-image:url("puerta.jpg");
  background-position: center center;
}

article.reg{
  background: rgba(33, 33, 33, 0.8);
  color:white;
  margin: auto auto auto auto;
  padding: 1px 0px;
  text-align: center;
  min-width: 300px;
  max-width: 500px;
  width: 36%;
  min-height: 100vh;
}

article.reg p{
margin: 10vh auto 20px;
font-size: 2em;
}

article.reg form{
  font-size:1.2em;
  width:80%;
  margin:auto;
}

label{ 
  display:block;
  text-align:left;
  margin:10px 5px 15px 10px;
}

form.reg > input{
 width: 100%;
 height: 10vh;
 font-size: 1.3em;
 max-height: 50px;
}

form.reg > input#submit {
  display:block;
  margin:30px auto;
  width:200px;
  height:60px;
}