body {
  background-color: lightblue;
  background-image: url("background/bk.jpg")
}

h1 {
  color: navy;
  margin-left: 50px
}

table {
  width: 95%
}

th, td {
  height: 50px;
  padding: 15px;
  text-align: center;
  border-bottom: 1px solid #ddd
}

tr:hover {
  background-color: #f5f5f5
}