* {
  box-sizing: border-box;
}

section {
  background: #e4e4e4;
  border: 1px solid #000000;
  border-top-left-radius: 20px;
  border-bottom-left-radius: 20px;
  max-height: 510px;
  overflow: auto;
}

article {
  background: #b5a579;
  max-width: 200px;
  border: 1px solid #000000;
  border-radius: 20px;
  margin: 7px 3px;
  padding: 20px;
  display: inline-block;
  box-shadow: 0 0 5px inset;
}