a.squarebutton{ }

a:link.squarebutton, a:visited.squarebutton, a:active.squarebutton{
color: #fff; /*button text color*/
}

a.squarebutton span {
    background-color: #337ab7;
    padding: 8px;
    border-radius: 5px;
}

a.squarebutton:hover{ /* Hover state CSS */
text-decoration: none;
}

a.squarebutton:hover span{ /* Hover state CSS */
background-position: bottom right;
color: #fbb000;
background-color: #000;
}

.buttonwrapper{ 
text-align: center;
}