.jumbotron {
  background-image: url(../images/rac-bg.jpg); 
  background-size: cover;
  height: 100%;
  box-shadow: inset 0 0 0 1000px rgba(0,0,0,.4);
}


.header img {
    float: left;
    width: 250px;
  
   
  }
  
  .header h1 {
    position: relative;
    top: 18px;
    left: 10px;
  }