.fa-svg {
    display: inline-block;
    width: 2em;
    height: 2em;
    vertical-align: -0.125em;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    color: inherit;
}

.fa-flag-vn {
    background-image: url('/assets/img/icons/vn.svg');
}

.fa-flag-cn {
    background-image: url('/assets/img/icons/cn.svg');
}

.fa-flag-gb {
    background-image: url('/assets/img/icons/gb.svg');
}