html_task1style.css

table,
th,
td {
  border: 1px solid white;
  border-collapse: collapse;
}
th,
td {
  background-color: #96d4d4;
}
.c1 {
  margin-left: auto;
  margin-right: auto;
}
table {
  width: 50%;
}

th {
  height: 70px;
}