.box{
  position: relative;
  width: 100%;
  background: #5850c7 url(https://d20ohkaloyme4g.cloudfront.net/img/hero-illustration-module.png) repeat;
  color: #fff;
  text-align: center;
  margin-bottom: 0;
  overflow-y:hidden;
}
.fullcontainer {
  display: flex;
  align-items: center;
  height: -webkit-calc(100vh - 50px);
  height: -moz-calc(100vh - 50px);
  height: calc(100vh - 50px);
}
.fullcontainer h1{
  font-size: 60px;
}
.fullcontainer h3{
  margin-bottom: 30px;
}