ul {
    list-style: none;
    display: grid;
    height: 50px;
    width: 100%;
    margin: auto;
    padding: 0px;
    font-family: monospace;
    color: White;
  }
  
  button {
    height: 50px;
    width: 100%;
    font-family: monospace;
    color: White;
    background-color: black;
    position: relative;
  }
  
    #SubMenu {
        display: none;
      }
      
      #MainMenu:hover #SubMenu {
        display: grid;
      }
  
    #SectionDefinition{
      background-color: burlywood;
    }
    section{
      display: grid;
      grid-template-columns: auto 550px;
      column-gap: 30px;
    }
    section> h2{
  grid-column-start:1;
  grid-column-end:3 ;
    }
    
    #buttonback:hover{
      background-color: white;
      color: black;
    }
  
    .imgright {
      float: right;
    }