.n_pic li{
    width: 30.33%;
    padding: 0 5px;}
.n_pic li a{
    display: block;}
.n_pic li a .pic{
    padding-top: 64.92%;}
.n_pic li a .txt h5{
    font-size: 12px;
    color: #000000;
    line-height: 20px;
    height: auto;
        margin: 0;}
.n_pic li a .txt{
    padding: 10px 25px;}
.n_pic{
    overflow: hidden;}
.n_pic ul{
    margin: 0 -15px;}
.flex-left{display:flex;flex-wrap:wrap;}
.pic {
    /*padding-top: 75%;*/
    position: relative;
    overflow: hidden;}

.pic .a{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-position: 50%;
    background-repeat: no-repeat;
    background-size: cover;
    transition: all 0.3s ease-in;}
.n_pic li::marker {
  display: none;
   content: '';}