homework3.css

body {
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Fira Sans","Droid Sans","Helvetica Neue",sans-serif;
  font-size: 14px;
}

div {
  margin: 3em auto;
  width: 660px;
}

table {
  border-spacing: 0;
  width: 100%;
}

tr td {
  border-right: 1px solid #ddd;
  border-bottom: 1px solid #ddd;
  margin-right: 2px;
  background-color: #fafafa;
  padding: 8px 16px;
}

thead {
  background-image: linear-gradient(120deg, #d4fc79 0%, #96e6a1 100%);
  padding: 2px;
}

tr th {
  font-weight: 700;
  text-transform: uppercase;
  padding: 8px 16px;
}