.page {
  background-color: #000;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

#kv {
  padding: 7% 0 2%;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  position: relative;
}

#kv .inner h2,
#kv .inner .h2 {
  margin-bottom: 10px;
}

@media screen and (max-width: 768px) {
  #kv {
    padding: calc(50px + 7%) 0 7%;
  }
}

#tutorials {
  position: relative;
  z-index: 1;
}

#tutorials .inner .main {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin: 40px 0;
  padding: 20px;
  border-radius: 7px;
  background-color: #1D1D1D;
}

#tutorials .inner .main .tutorial_item {
  width: 47%;
  margin: 1.5%;
  border-radius: 20px;
  overflow: hidden;
  background-color: #242424;
  -webkit-box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  cursor: pointer;
}

#tutorials .inner .main .tutorial_item:hover .pic>img.on_hover {
  opacity: 1;
}

#tutorials .inner .main .tutorial_item .pic {
  width: 100%;
  position: relative;
}

#tutorials .inner .main .tutorial_item .pic figure {
  width: 100%;
  padding-bottom: 56%;
  background-color: #000;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

#tutorials .inner .main .tutorial_item .pic>img {
  width: 17%;
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  -webkit-transition: .2s;
  -o-transition: .2s;
  transition: .2s;
}

#tutorials .inner .main .tutorial_item .pic>img.on_hover {
  opacity: 0;
}

#tutorials .inner .main .tutorial_item .text {
  padding: 20px;
  background-color: #242424;
}

@media screen and (max-width: 600px) {
  #tutorials .inner .main .tutorial_item {
    width: 100%;
    margin: 10px 0;
  }
}