js实现文字垂直滚动和鼠标悬停效果

<ul class="remend-info">
  <li>
    <span class="push">荐</span>
    <a href="javascript:;">1高档社区，经典户型，机会难得，稍纵即逝！仅售66万！</a>
    <span class="htype">66万  3室2厅1卫 120㎡</span>
  </li>
  <li>
    <span class="push">荐</span>
    <a href="javascript:;">2高档社区，经典户型，机会难得，稍纵即逝！仅售66万！</a>
    <span class="htype">66万  3室2厅1卫 120㎡</span>
  </li>
  <li>
    <span class="push">荐</span>
    <a href="javascript:;">3高档社区，经典户型，机会难得，稍纵即逝！仅售66万！</a>
    <span class="htype">66万  3室2厅1卫 120㎡</span>
  </li>
  <li>
    <span class="push">荐</span>
    <a href="javascript:;">4高档社区，经典户型，机会难得，稍纵即逝！仅售66万！</a>
    <span class="htype">66万  3室2厅1卫 120㎡</span>
  </li>
</ul>

<style>
  .remend-info {
    width: 630px;
    height: 42px;
    padding: 0 10px;
    margin-: 12px;
    margin-bottom: 18px;
    border: 1px dashed #DFDFDF;
    overflow: hidden;
  }
  .remend-info li {
    overflow: hidden;
    font-size: 14px;
    line-height: 42px;
  }
  .remend-info li .push {
    float: left;
    display: inline-block;
    width: 18px;
    height: 17px;
    margin-: 12px;
    margin-right: 10px;
    background: #D95B4E;
    font-size: 12px;
    color: #fff;
    text-align: center;
    line-height: 17px;
  }
  .remend-info li a {
    float: left;
    color: #333;
  }
  .remend-info li a:hover {
    color: #da5c4f;
  }
  .remend-info li .htype {
    float: right;
    color: #999;
  }
</style>

<script>
  // 不断把新的第一个追加到后面 
  function vscroll() {
    var frtEle = $('.remend-info li:first');
    frtEle.animate({'marginTop': -$('.remend-info li').height()}, 500, function(){
      frtEle.css('marginTop', 0);
      $('.remend-info').append(frtEle);
    });
  }
  var startInterval = setInterval(vscroll, 3000);

  // 鼠标悬停 
  $('.remend-info li').hover(function(){
    clearInterval(startInterval);
  }, function(){
    startInterval = setInterval(vscroll, 3000);
  });
</script>