body{
  overflow-x: hidden;
}

h1 {
    text-align: center;
}

.user-form{
  position: relative;
}

.user-form:before{
  content: "";
  position: absolute;
  height: 100%;
  width: 100vw;
  margin-left: 50%;
  left: -50vw;
  background-color: #00aeef;
  top: 0;
  z-index: 1;
}