JS走马灯小功能制作

<div id="contain">
  <div id="content">
作文，怎样才能写好？作文，好于勤读，作文，优于真情。作文一词，汇于欲要看究竟，处处细留心。作文于此，荟萃真情，如酒如烟，过于酿造。作文于新，纯于构思，百炼成钢.
  </div>
</div>

#contain {
  width: 92%;
  height: 20px;
  position: relative;
  bottom: 24px;
  left: 20px;
  background-color: #fff;
  overflow: hidden;
 
 
}
 
#content {
  width: auto;
  height: 20px;
  white-space: nowrap;
  position: absolute;
  background-color:#fff ;
}

let move = 0;
 
function animation() {
  move += 1;
  $('#content').css('margin-left', '-' + move + 'px');
  if (move > wid) {
    move = 344;
  }
}