#layout {
  display:grid;
  grid-template-areas:
    "header header"
    "nav content";
  grid-template-columns: 12rem 1fr;
  gap:1rem;
  place-content:center;
  max-width:70%;
  margin-left:auto;
  margin-right:auto;
  margin-top:20px;
  padding:5px;
}

/*highlight boxes so I can see what my divs are*/
* {
  box-sizing:border-box;
  border: 1px solid black;
}

/*format header*/
header {
  width:100%;
  display: flex;
  align-items: center;
  justify-content: center
}

.tab-button {
  width:100%;
  display:block;
  padding-top:0.5rem;
  padding-bottom:0.5rem;
  background-color:white;
}
.tab-button:hover, .tab-button:focus {
  background-color: #709775;
  color:white;
}
th, td {
  padding:5px;
}