.materail_slide {
  width: 80%;
  margin: 0 auto; }
  .materail_slide img {
    padding: 0 10px;
    box-sizing: border-box; }
  .materail_slide .slick-prev, .materail_slide .slick-next {
    width: 50px;
    height: 50px; }

.materail_content {
  width: 100%;
  margin: 20px auto 0;
  padding: 20px;
  box-shadow: 0 0 10px #eee;
  background-color: rgba(255, 255, 255, 0.5); }
  .materail_content > div.hidden {
    display: none; }
  .materail_content > div.show {
    display: block; }
  .materail_content > div img {
    width: 100%; }

@media only screen and (max-width: 1024px) {
  .materail_content {
    width: 93%;
    padding: 10px; }

  .materail_slide .slick-prev, .materail_slide .slick-next {
    width: 30px;
    height: 30px; } }
@media only screen and (max-width: 480px) {
  .materail_content {
    width: 100%;
    padding: 5px; }

  .materail_slide .slick-prev, .materail_slide .slick-next {
    width: 20px;
    height: 20px; }
  .materail_slide .slick-prev {
    left: -15px; }
  .materail_slide .slick-next {
    right: -15px; } }