main {
  max-width: 1200px;
  margin: auto;
}
main .has-a {
  position: relative;
}
main .has-a a {
  position: absolute;
  left: 50.2%;
  -webkit-transform: translateX(-50%);
          transform: translateX(-50%);
  width: 74%;
  -webkit-transition: 0.3s;
  transition: 0.3s;
  border-radius: 20px;
}
main .has-a a:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* a */
main .site-header a {
  position: absolute;
  left: initial;
  right: 6.5%;
  -webkit-transform: none;
          transform: none;
  top: 45%;
  width: 21%;
  height: 52%;
  -webkit-transform: translateY(-50%);
          transform: translateY(-50%);
}
main .content-one-btn a {
  position: absolute;
  left: 52%;
  top: 41%;
  width: 14%;
  height: 66%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}
main .content-three-btn a {
  position: absolute;
  bottom: 4%;
  height: 8%;
}
main .content-three-btn:nth-child(2) a {
  height: 10%;
  bottom: 21%;
}
main .content-four-btn a {
  position: absolute;
  bottom: 2%;
  height: 7%;
}
main .content-four-btn:nth-child(2) a {
  bottom: 18%;
  height: 9%;
}
main .content-five-btn a {
  position: absolute;
  bottom: 2%;
  height: 9%;
}
main .content-five-btn:nth-child(2) a {
  bottom: 19%;
  height: 10%;
}
main .content-six-btn a {
  position: absolute;
  bottom: 14%;
  height: 7%;
}
main .content-seven-btn a {
  position: absolute;
  bottom: 3%;
  height: 10%;
}
main .content-seven-btn:nth-child(2) a {
  bottom: 19%;
  height: 10%;
}
main .content-eight-btn a {
  position: absolute;
  bottom: 1%;
  height: 11%;
}
main .content-eight-btn:nth-child(2) a {
  bottom: 17%;
  height: 8%;
}
main .content-ten-btn a {
  position: absolute;
  bottom: 17%;
  height: 9%;
}
main .content-ten-btn:nth-child(2) a {
  left: 50.5%;
  width: 75%;
  bottom: 17%;
  height: 11%;
}
main .content-eleven-btn a {
  position: absolute;
  bottom: 11.5%;
  height: 5%;
}
main .content-twelve-btn a {
  position: absolute;
  bottom: 11.5%;
  height: 5%;
}
main .content-thirteen-btn a {
  position: absolute;
  bottom: 11%;
  height: 6%;
}
main .content-thirteen-btn:nth-child(2) a {
  bottom: 16%;
  height: 8%;
}
main .content-thirteen-btn:nth-child(3) a {
  bottom: 22%;
  height: 10%;
}
main .content-fourteen-btn a {
  position: absolute;
  bottom: 11%;
  height: 5%;
}
main .content-fourteen-btn:nth-child(2) a {
  bottom: 13%;
  height: 9%;
}
main .content-fourteen-btn:nth-child(3) a {
  bottom: 20%;
  height: 9%;
}
main .content-fourteen-btn:nth-child(4) a {
  bottom: 12%;
  height: 6%;
}
main .site-footer a {
  position: absolute;
  left: 50%;
  top: 0;
  width: 100%;
  height: 100%;
}