.target_image {
    list-style: none;
    width: 50%;
    padding-left: 2%;  
    padding-bottom: 2%;
  }
.target_image img{
      width: 100%;
    }
  .img_container {
  width: 100%;
  display: flex;
 }

@media screen and (max-width:768px) {
    .target_image {
        list-style: none;
        width: 100%;
        padding: 0%;
        padding-bottom: 2%;
        text-align:center;
    }
    .target_image img {
        width: 100%;
    }
    .img_container {
        width: 100%;
        display: block;
    }
}