.mfp-arrow-right:before {
    border-left: none;
    content: "\f061";
    font-size: 18px;
    font-family: 'FontAwesome';
    color: #fff;
    line-height: 60px;
    background: #232323;
    width: 100%;
    height: 100%;
    border-radius: 100%;
    border: none
}

.mfp-arrow-left:before {
    border-left: none;
    content: "\f060";
    font-size: 18px;
    font-family: 'FontAwesome';
    color: #fff;
    line-height: 60px;
    background: #232323;
    width: 100%;
    height: 100%;
    border-radius: 100%;
    border: none
}