.modules_a {
    width:120px;
    margin:10px;
    display: block;
    font-family: Arial;
text-decoration: none;
font-size: 12px;
color: #000000;
text-align: justify;

}

.modules_a:hover {
    width:120px;
    margin:10px;
    display: block;border-left: 1px solid #000000;
border-right: 1px solid #000000;
border-top: 1px solid #000000;
border-bottom: 1px solid #000000;
font-family: Arial;
text-decoration: none;
font-size: 12px;
color: #000000;
text-align: justify;

    overflow: auto;
}