@media (min-width: 320px){

header{
  /*
  background-image: url('http://codern.com.br/wp-content/uploads/2015/07/mg_6806-e1438002000431.jpg');
  box-shadow: inset 0 -100em 0 rgba(255,255,255,0.5);
  background-position: 0px -119px;*/
}


}