.social-share__btn--link{position:relative;display:inline-block}
.social-share__btn--link .tooltiptext{visibility:hidden;width:200px;background-color:#f7f7f7;color:silver;text-align:center;border-radius:6px;padding:5px;position:absolute;z-index:1;bottom:150%;left:50%;margin-left:-75px;opacity:0;transition:opacity .3s}
.social-share__btn--link .tooltiptext::after{content:"";position:absolute;top:100%;left:50%;margin-left:-5px}
.social-share__btn--link:hover .tooltiptext{visibility:visible;opacity:1}