效果图

/*首页跑马灯效果*/
@keyframes around {
  from {
   margin-left: 100%;
  }
  to {
   /* var接受传入的变量 */
   margin-left: var(--marqueeWidth--);
  }
 }
 
.marquee_container{
  background-color: #fff;
  height: 50rpx;
  line-height: 44rpx;
  position: relative;
  width: 100%;
  margin-top:0rpx;
}
.marquee_container:hover{
  /* 不起作用 */
  animation-play-state: paused;
}
.marquee_text{
  color:#737373;
  font-size: 28rpx;
  display: inline-block;
  white-space: nowrap;
  animation-name: around;
  animation-duration: 10s;  /*过渡时间*/
  animation-iteration-count: infinite;
  animation-timing-function:linear;
}

		<!-- 公告 -->
<view class="marquee_container" style="--marqueeWidth--:-12em">
    <view class="marquee_text">欢迎使用爱宅域影视小程序，祝您观看愉快。</view>
</view>
<!--跑马灯-->

缺点，内容过长无法显示完整

来源：scdn