body {
  text-align: center;
  font-family: "Trebuchet MS", "Lucida Sans Unicode", "Lucida Grande",
    "Lucida Sans", Arial, sans-serif;
  border-style: ridge;
  border-color: cadetblue;
  height: 120vh;
  color: white;
  background-image: url("https://t3.ftcdn.net/jpg/04/17/15/44/360_F_417154464_XWjVtPxASXXlFIPUvQtoMOeJ8ky38Q6W.jpg");
}

.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 20%;
}

img {
  padding-bottom: 25px;
}

a:link,
a:visited {
  padding: 5px;
  background-color: cadetblue;
  color: white;
  text-decoration: none;
  border-style: outset;
  border-color: rgb(81, 136, 138);
}

a:hover,
a:active {
  padding: 8px;
  background-color: red;
  color: white;
  text-decoration: none;
  border-style: inset;
  border-color: rgb(218, 0, 0);
}

footer {
  padding: 10vh;
  opacity: 35%;
}