.fl {
    float: left;
}
.fr {
    float: right;
}

.clearfix::after {
    content: '.';
    display: block;
    height: 0;
    line-height: 0;
    clear: both;
    visibility: hidden;
}

.flex-row {
   display: -webkit-box;
   display: -webkit-flex;
   display: flex;
   -webkit-box-orient: horizontal;
   flex-direction: row;
}

.flex-col {
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-orient: vertical;
    flex-direction: column;
}

.flex-grow-0 {
    min-width: 0;
    -webkit-box-flex: 0;
    flex-grow: 0;
    flex-shrink: 0;
}
.flex-grow-1 {
    min-width: 0;
    -webkit-box-flex: 1;
    flex-grow: 1;
    flex-shrink: 1;
}

.flex-x-center {
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
}

.flex-y-center {
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    align-items: center;
}

.flex-xy-center {
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    align-items: center;
}

.flex-y-bottom {
    display: flex;
    align-items: flex-end;
}

.h100 {
    height: 100%;
}
.w100 {
    width: 100%;
}
.hw100 {
    height: 100%;
    width: 100%;
}
.main-box {
    min-height: 100%;
    width: 100%;
}
.text-over {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.text-over2 {
    display: -webkit-box;
    text-overflow: -o-ellipsis-lastline;
    text-overflow: ellipsis;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}