.content3 {
  padding: 35px;
  margin-top: 20px;
  width: 1200px;
  height: 855px;
  background-color: #fff;
}

.content3 ul li {
  float: left;
  margin-right: 40px;
  width: 350px;
  height: 370px;
  margin-bottom: 50px;
  background-color: #fff;
  border: 1px solid #ccc;

}

.content3 ul li:nth-child(3n) {
  margin-right: 0;

}

.content3 ul li .top {
  padding: 10px;
  width: 100%;
  height: 200px;
}

.content3 ul li .top img {
  width: 100%;
  height: 100%;
}

.content3 ul li .bottom {
  text-align: center;
  padding: 20px;
  padding-top: 10px;
  width: 100%;
  height: 200px;
  font-size: 14px;
  color: #000;
  line-height: 30px;
}

.content3 ul li .bottom h4 {
  font-size: 16px;
}

.content3 ul li .bottom p {
  text-align: justify;
  color: #000;
}