.banner {
  width: 1440px;
  height: auto;
  margin: 0 auto;
}

.courseCard li {
  background-color: #fff;
  float: left;
  width: 272px;
  height: 360px;
  margin-right: 16px;
  margin-bottom: 16px;
  border: 1px solid #ededed;
  text-align: center;
  border-radius: 3px;
  cursor: pointer;
}

.courseCard li:hover {
  margin-top: -3px;
  box-shadow: 0 14px 60px #ddd;
}

.courseCard li:nth-child(4n) {
  margin-right: 0;
}

.courseCard li .img {
  height: 206px
}

.courseCard li .img img {
  width: 192px;
  height: 152px;
  margin: 62px auto 0 auto;
}

.courseCard li .name {
  font-size: 14px;
  font-weight: 400;
  color: #333
}

.courseCard li .kit {
  margin-top: 20px;
  font-size: 12px;
  color: #666;
}