body  {
  background-image: url("background1.jpg");
}

h1 {
  color: green;
}

table {
  font-family: arial, sans-serif;
  border-collapse: collapse;
  width: 60%;
}

td, th {
  border: 1px solid #dddddd;
  padding: 8px;
}

tr:nth-child(even) {
  background-color: #dddddd;
}

.responsive {
  width: 60%;
  max-width: 200px;
  height: auto;
}

.center {
  margin-left: auto;
  margin-right: auto;
}

.footer {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  color: white;
  text-align: center;
}