.message-list {
    margin-bottom:20px;
}

.message-list li {
    position:relative;
    margin-bottom:10px;
    padding-left:12px;
}
.message-list li:before {
    position:absolute;
    display:block;
    content:'';
    left:0;
    top:8px;
    width:6px;
    height:6px;
    border-radius:3px;
    background-color:#ff4d4d;
}