.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;
  }