.page-title{
    text-align: center;
}

.question-info{
    text-align: center;
}

.comment-group-title{
    margin-top: 20px;
}

.form-container{
    width: 500px;
    margin-top: 10px;
    text-align: right;
}

.comment-group{
    list-style: none;
    padding-left: 0;
}

.comment-group li{
    border-bottom:1px solid #eee;
    padding: 10px 0;
}

.comment-group li .user-info{
    height: 40px;
    line-height:40px;
    color: #9b9b9b;
    font-size: 16px;
}

.user-info .avatar{
    height:40px;
    width: 40px;
    float: left;
    border-radius: 50%;
}

.user-info .username{
    margin-left: 10px;
}
.user-info .create-time{
    float: right;
}
.comment-content{
    margin-left: 50px;
}