.hero {
height: 600px;
background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)) repeat scroll 0 0%, rgba(0, 0, 0, 0) url('?url=https%3A%2F%2Fpythonmg.github.io%2Fimages%2Fbanners%2Fbh-pampulha.jpg'); repeat scroll 0 0;
background-position: 50% 50%;
background-repeat: no-repeat;
background-attachment: fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
overflow: hidden;
}
