.box-layers{background-color: #eeeeee;
padding: 2rem 1rem 4rem 1rem;
border-top: 10px solid #dddddd;
margin: 4rem 0;}
.h2-wrapper{border:1px solid black;}
.box-sizing-example {
    background-color: #eeeeee;
    padding: 2rem;
    border: 10px solid #dddddd;
    width: 100%;
    box-sizing: border-box; 
  }
  .overflow-example{
    width: 50%;
    height: 300px;
    overflow: auto;
  }