.content-main {
  margin-top: 70px;
}

.content-main ul {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
}

.content-main ul li {
  width: 30.33%;
  margin: 1.5%;
  -webkit-box-shadow: 1px 1px 2px 1px rgba(0, 0, 0, 0.1);
          box-shadow: 1px 1px 2px 1px rgba(0, 0, 0, 0.1);
}

.content-main ul li p {
  text-align: center;
  height: 50px;
  line-height: 50px;
}

.content-main ul li .pic {
  overflow: hidden;
}

.content-main ul li .pic img {
  width: 100%;
  -webkit-transition: all 0.6s;
  -o-transition: all 0.6s;
  transition: all 0.6s;
}

.content-main ul li:hover img {
  -webkit-transform: scale(1.05);
      -ms-transform: scale(1.05);
          transform: scale(1.05);
}