* {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  padding: 0;
  margin: 0;
}

html, body {
  width: 100%;
}

img {
  display: block;
  width: 100%;
}

.block-wrapper {
  width: 100%;
  height: 100%;
  position: relative;
}

.app {
  position: relative;
  display: block;
  width: 100%;
  height: 100vh;
  background-image: url("bg.jpg");
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  overflow: hidden;
}

.logo {
  position: absolute;
  width: 99%;
  left: 0%;
  bottom: 0%;
  transition: all ease .3s;
  transform-origin: 50% 100%;
}
.logo:hover {
  width: 100%;
  transform:scale(1)
}

.notice {
  position: absolute;
  width: 60%;
  top: 11%;
  left: 20%;
}

.wrapper {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  width: 70%;
  position: absolute;
  left: 15%;
  top: 26%;
}

.wrapper .card {
  position: relative;
  -ms-flex-preferred-size: 23%;
      flex-basis: 23%;
  cursor: pointer;
  -webkit-transform-style: flat;
          transform-style: flat;
  -webkit-perspective: 500px;
          perspective: 500px;
  -webkit-transition: all ease .3s;
  transition: all ease .3s;
}

.wrapper .card .perspective {
  -webkit-transition: all ease .1s;
  transition: all ease .1s;
  position: relative;
}

.wrapper .card .perspective .card-a {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
  -webkit-transition: all ease 0.5s;
  transition: all ease 0.5s;
}

.wrapper .card .perspective .card-n {
  position: absolute;
  bottom: -3%;
  width: 80%;
  left: 10%;
}

.wrapper .card:hover {
  -webkit-transform: scale(1.1);
          transform: scale(1.1);
}

.wrapper .card:hover .card-a {
  opacity: 1;
}