子元素会触发父元素的鼠标移出事件

$('.nTitle').on('mouseover','li.nTitle-item',function(){

    $(this).children('div.row').removeClass('d-none');

  })

  $('.nTitle').on('mouseout','li.nTitle-item',function(){

    $(this).children('div.row').addClass('d-none');

  })

/*#topL-nav{*/

  /*float: left;}*/

.logo{

  display: inline-block;

  height: 4rem;



}

.logo span{

  display: inline-block;

  width: 124px;

  height: 21px;

  background-image: url(../img/svg-logo.svg);

  background-size: 100% auto;

  margin-top: 1.5rem;

}

.search{

  display: inline-block;

  margin-bottom: -4px;

  width: 20px;

  height: 20px;

  background-image: url(../img/ico-new-gnb-searh.svg);

  background-size: 100% auto;

}

.topL-nav a{

  position: relative;

}

.topL-nav>ul>li>a::after{

  position: absolute;

  display: block;

  content: "";

  margin: 0 auto;

  text-align: center;

  width: 0%;

  height: 4px;

  background: #162d9a;

  bottom: -1.5rem;

}



.topL-nav>ul>li>a:hover::after {

  width: 100%;

  transition: all 1s;

}

/*动画*/

.maskNav li{

  display: block;

  width: 100%;

  margin-top: 0.5rem;

  margin-bottom: 1rem;

}

.maskNav-pic a,.maskNav-pic b,.maskNav-pic span{

  display: block;

  width: 100%;

}

.maskNav-pic a{

  height: 100%;

  position: relative;

}

.maskNav-pic b{

  position: absolute;

  text-align: center;

  font-size: 20px;

  height: 3rem;

  line-height: 3rem;

  top: 0.8rem;

}

.maskNav-pic span{

  position: absolute;

  width: 40%;

  margin-left: -20%;

  text-align: center;

  font-size: 12px;

  height: 1.5rem;

  line-height: 1.5rem;

  border: 1px solid #000;

  border-radius: 3rem;

  top: 3.6rem;

  left: 50%;

}

.maskNav-pic span:hover{

  color: #fff;

  background-color: #000;

  transition: all 1s;

}

#nList{

  top: 65px;

}