/* Font Awesome 4.7-compatible X icon.
   Usage: <i class="fa fa-x-twitter" aria-hidden="true"></i>
*/
.fa-x-twitter::before {
    content: "";
    display: inline-block;
    width: 1em;
    height: 1em;
    vertical-align: -0.125em;
    background-color: currentColor;
    -webkit-mask: url("fa-x-twitter.svg") center / contain no-repeat;
    mask: url("fa-x-twitter.svg") center / contain no-repeat;
}