Custom CSS not working

Just like with another my question – everything works fine if I modify custom CSS via FTP. I believe my WP doesn’t have appropriate rights, but I don’t know what files should I grant with rights.

Hi, Jordan

I added this CSS in Child’s Quick CSS theme and can’t make it run. At the same time adding this code to custom.css using FTP works perfect. I can’t add this code uding Theme editor. So I believe there’s writing rules mistake.

.avia-icon-list .iconlist_icon {
    height: 32px;
    width: 32px;
    line-height: 32px;
    font-size: 20px;
}

.avia-icon-list .iconlist-timeline {
    left: 17px;
}

.avia-icon-list .av-iconlist-empty .iconlist_title {
    margin-top: 7px;
}

Regards, Vital