.views-field-field-amazon-link {
    vertical-align: middle;
    background-color: #353535 !important;
    width: 32%!important;
    border-radius: 6px;
    height: 30px;
    margin-right:1%;
    margin-top:10px;
    float: left;
    padding-left: 10%;
}

.views-field-field-barnes-and-noble-link {
        vertical-align: middle;
    background-color: #353535 !important;
    width: 32%!important;
    border-radius: 6px;
    height: 30px;
    margin-right:1%;
    margin-top:10px;
    float: left;
    padding-left: 10%;
}

.views-field-field-indiebound-link {
            vertical-align: middle;
    background-color: #353535 !important;
    width: 32% !important;
    border-radius: 6px;
    height: 30px;
    margin-right:0px;
    margin-top:10px;
    float: left;
    padding-left: 10%;
}