* {
  box-sizing: border-box;
}

body {color: white; background-color: black}
.header{
   background-color:maroon;
   color: white;
   width: 100%;
   
}
.main {
   background-color: black;
   color: white;
   font-size: 30px;
   font-style:verdana;
   width: 100%;
   height: 50%;
   display:block;
   
}


.what {
   width: 33%;
   
   display: inline-block;
   
   color: white;
   vertical-align:top;
}
.footer{
   
  
   background-color: maroon;
   color: white;
}