.arrow::before {
    content: '';
    position: relative;
    top: 0px;
    background: url(http://localhost/www/wordpress/wp-content/uploads/2018/02/arrow-t.png);
    z-index: 10000;
    background-size: 100% 100%;
    padding: 13px 25px;
    left: 50em;
    right: auto;
}
.arrow {
    margin-top: -4px;
}
.arrow-two::before {
    background: url(http://localhost/www/wordpress/wp-content/uploads/2018/02/arrow-a.png) !important;
    background-size: 100% 100% !important;
}