body {
    background-image: url("http://media1.santabanta.com/full1/Nature/Architectural/architectural-110a.jpg");
    background-size: cover;
}
.left {
    width: 300px; 
    background-color: white;
    color: black; 
}
.heading {
  font-family: ariel;
  font-size: 350px;
  background-color:gray;
  color: black;
}
.intro {
    font-family: Lucida Console;
    font-size: 30px;
    background-color: gray; 
    color: black;

.hardtitle {
    font-family: Lucida Console;
    font-size: 450px;
}
.hard {
    font-family: Lucida Console;
    font-size: 30px;
    background-color: gray; 
    color: black;
}
.1stpicture {
    background-color: gray; 
}