#chats li {
    display: block;
    list-style-image: none;
    list-style-type: none;
}

    #chats li span {
        display: table-cell;
        vertical-align: top;
        background-color: rgb(255, 255, 204);
        padding-right: 10px;
        text-align: right;
        width: 40px;
    }

        #chats li span + span {
            background-color: rgb(255, 204, 0);
            padding-right: 0px;
            text-align: center;
            width: 180px;
        }

            #chats li span + span + span {
                background-color: rgb(255, 204, 102);
                width: 120px;
            }