// mixin
// 清除浮动
@mixin clearfix {
  &:after {
    content: "";
    display: table;
    clear: both;
  }
}
 
// 多行隐藏
@mixin textoverflow($clamp:1) {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  -o-text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: $clamp;
  /*! autoprefixer: ignore next */
  -webkit-box-orient: vertical;
}

//flex box
@mixin flexbox($jc:space-between, $ai:center, $fd:row, $fw:nowrap) {
  display: flex;
  display: -webkit-flex;
  flex: 1;
  justify-content: $jc;
  -webkit-justify-content: $jc;
  align-items: $ai;
  -webkit-align-items: $ai;
  flex-direction: $fd;
  -webkit-flex-direction: $fd;
  flex-wrap: $fw;
  -webkit-flex-wrap: $fw;
}

@keyframes slidefade {
  0% {
    opacity: 0;
    transform: translateX(0);
  }
  70% {
    opacity: 1;
    transform: translateX(-30%);
  }
  100% {
    opacity: 0;
    transform: translateX(-30%);
  }
}

@keyframes downfade {
  0% {
    opacity: 0;
    transform: translateY(0);
  }
  70% {
    opacity: 1;
    transform: translateY(20%);
  }
  100% {
    opacity: 0;
    transform: translateY(20%);
  }
}