.box-layers {
    background-color: #eeeeee;
    padding-top: 2rem;
    padding-right: 1rem;
    padding-bottom: 4rem;
    padding-left: 1rem;
    border-top-width: 10px;
    border-top-style: solid;
    border-top-color: rgb(221, 221, 221);
    margin-top: 4rem;
    margin-right: 0px;
    margin-bottom: 4rem;
    margin-left: 0px;
}

.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: hidden;
    overflow: auto;
  }