.list_rank {
    width: 28px;
    height: auto;
    display: inline-block;
}
.chat_rank {
    display: inline-block;
    width: auto;
    height: 15px;
    margin: 0 3px 0 0;
}
.user_joined {
	background: #e8fff0;
	border-left: 4px solid #28a745;
	color: #155724;
	font-weight: bold;
}