.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;
}