/* PREVIEW 1 */
.preview1 {
    min-height: 20vh;
}

.preview1 a:link {
 color: magenta;
}

/* PREVIEW 2 */
.preview2 {
    min-height: 20vh;
}

.preview2 a:visited {
 color: purple;
}

/* PREVIEW 3 */
.preview3 {
    min-height: 20vh;
}

.preview3 a:any-link {
  color: crimson;
}

/* PREVIEW 4 */
.preview4 {
    min-height: 45vh;
}

.preview4 section:target {
 background-color: green;
 border: 2px solid green;
 padding: 10px;
}