body {
    margin: 15px;
    background-color: rgb(185, 185, 185);
    line-height: 1.2;
}

a:visited {
    color: rgb(255, 0, 0);
    background-color: transparent;
    text-decoration: none;
}
  
a:hover {
    color: rgb(255, 255, 255);
    background-color: transparent;
    text-decoration: underline;
}
  
a:active {
    color: rgb(0, 0, 255);
    background-color: transparent;
    text-decoration: underline;
}