.container_content .nav-box{
  width: 80%;
  margin: 0 auto;
  padding: 80px 0;
}
.container_content .nav-box .nav{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}
.container_content .nav-box .nav .item{
  width: 33%;
}
.container_content .nav-box .nav .item .img{
  width: 400px;
  height: 300px;
  display: flex;justify-content: center;
  margin: 0 auto;

}
.container_content .nav-box .nav .item img{
  width: 100%;
  height: 100%;
}
.container_content .nav-box .nav .item p{
  text-align: center;
  margin: 25px 0 !important;
}