ul > li
{
    display: inline-block;
}
li
{
    width: 180px;
}

img
{
    width: 180px;
}

.tooth
{
    margin-top: -250px;
}


.links
{
    margin-top: -150px;
    margin-left: 20px;
    visibility: hidden;

}

a
{
    color: white;
    text-decoration: none;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 20px;
    text-align: center;
}

.image:hover > .tooth
{
    visibility: hidden;
}

.image:hover > .links
{
    visibility: visible;
}