.demo_wrap {
  width: 100%;
  height: auto;
}

.demo_wrap:not(:last-child) {
  margin-bottom: 100px;
}

.demo_wrap .lightbox-container {
  width: 100%;
  height: auto;
}

.demo_wrap .lightbox-container ul {
  padding: 15px 15px 0px 15px;
  width: 100%;
  height: auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  background-color: #eee;
  box-sizing: border-box;
  border-radius: 5px;
}

.demo_wrap .lightbox-container ul:after {
  content: "";
  width: 230px;
}

.demo_wrap .lightbox-container ul li {
  margin-bottom: 15px;
  /* width: 230px; */
  /* height: 230px; */
  border-radius: 5px;
  border: solid 6px #fff;
  box-sizing: border-box;
}

.demo_wrap .lightbox-container ul li a {
  width: 100%;
  height: auto;
  display: block;
}

.demo_wrap .lightbox-container ul li a:hover {
  opacity: 0.7;
}

.demo_wrap .lightbox-container ul li a img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

@media screen and (max-width: 480px) {
  .demo_wrap .lightbox-container ul:after {
    width: 47.5%;
  }
  .demo_wrap .lightbox-container ul li {
    width: 47.5%;
    height: auto;
  }
}