body {
    font-family: Arial, Helvetica, Sans-Serif;
    background-color: #b5ce6e;
    margin: 30px;
}

.column {
  float: left;
  width: 33.33%;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}

a {
  line-height: 1.5;
}

 /* unvisited link */
a:link {
  color: green;
}

/* visited link */
a:visited {
  color: green;
}

/* mouse over link */
a:hover {
  color: red;
}

/* selected link */
a:active {
  color: yellow;
}