.clearfix:before,
.clearfix:after {
    content: " ";
    display: table;
}
.clearfix:after {
    clear: both;
}
/**
 * For IE 6/7 only
 * Include this rule to trigger hasLayout and contain floats.
 */
.clearfix {
    zoom: 1;
}

/* 水平居中 */
.center-block {
    display: block;
    margin-right: auto;
    margin-left: auto;
}

.pull-right {
    float: right !important;
}

.pull-left {
    float: left !important;
}

.text-ellipsis {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.text-ellipsis2 {
    display: block;
    display: -webkit-box;
    overflow: hidden;
    -o-text-overflow: ellipsis;
    text-overflow: ellipsis;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.text-ellipsis3 {
  display: block;
  display: -webkit-box;
  overflow: hidden;
  -o-text-overflow: ellipsis;
  text-overflow: ellipsis;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}