.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; 
}