table {
  
  width: 100%;
  border-collapse: collapse;
  border: 3px solid black;
}
th {
  background-color : #5c75a2;
  color:white;
}
tr:nth-child(even) {
  background-color: #D8D8D8;
}
tr: {
  border-bottom: 1px solid #ddd;
}
tr:hover {
  background-color: #D6EEEE;
}