.chatPeople.vscrollable:before {
    content: "";
    background-image: url(Адрес картинкиииии);
    background-position: bottom;
    background-repeat: no-repeat;
    background-size: 60%;
    z-index: 0;
    width: 200px;
    height: 200px;
    line-height: 18px;
    opacity: 0;
    position: absolute;
    left: 5px;
    bottom: 500px;
    -moz-transition: all 1s;
    -webkit-transition: all 1s;
    -o-transition: all 1s;
    transition: all 1s;
}.chatPeople.vscrollable:hover:before {
    width: 200px;
    height: 200px;
    z-index: 0;
    left: 5px;
    bottom: 5px;
    opacity: 1;
}