body {
  margin: 0;
  padding: 0;
}
table {
  width: 100%;
  margin: 0 auto;
  border: 1px solid #000;
}
th,
td {
  font-family: sans-serif;
  padding: 0.5rem;
  /*   border: 1px solid #000; */
}
tr th {
  background: navy;
  color: white;
}

tr:nth-child(odd) {
  background: #eefefe;
}
td:nth-child(1) {
  width: 320px;
  color: #444;
  font-weight: bold;
}
td:nth-child(2) {
  width: 450px;
  text-align: center;
}
th input {
  width: 80%;
  background: navy;
  color: white;
  font-size: 1.2rem;
}
th button {
  background: navy;
  color: white;
  font-size: 1.2rem;
}

aside {
  font-style: italic;
  width: 70%;
  font-family: sans-serif;
  margin: 0 auto;
  font-size: 0.75rem;
  background: #ccc;
  padding: 0.5rem;
  text-align: center;
}
th {
  background: white;
  position: sticky;
  top: 0; /* Don't forget this, required for the stickiness */
  box-shadow: 0 2px 2px -1px rgba(0, 0, 0, 0.4);
}