.follow-us a {
    display: block;
    margin-left: 4px;
    width: 24px;
    height: 24px;
    float: left;
    background-image: url("images/social-logos.png");
    background-repeat:no-repeat;
}
.follow-us a:hover {
    text-decoration:none;
}
.follow-us .facebook {
    margin-left: 14px;
}
.follow-us .google {
    background-position:-44px top;
}
.follow-us .twitter {
    background-position:-88px top;
}
.follow-us .instagram {
    background-position:-132px top;
}