.btn_01 {
  position: absolute;
  top: 0%;
  left: 6.5%;
  width: 87.1%;
  -webkit-mask: url("../images/thing04-1.png") no-repeat center center;
  mask: url("../images/thing04-1.png") no-repeat center center;
  -webkit-mask-size: contain;
  mask-size: contain;
  mask-position: 0%;
}

.btn_02 {
  position: absolute;
  top: 24%;
  left: 13.5%;
  width: 73.3%;
  -webkit-mask: url("../images/thing21-1.png") no-repeat center center;
  mask: url("../images/thing21-1.png") no-repeat center center;
  -webkit-mask-size: contain;
  mask-size: contain;
  mask-position: 0%;
}

.btn_03 {
  position: absolute;
  top: 7%;
  left: 11.25%;
  width: 77.5%;
  -webkit-mask: url("../images/thing37-1.png") no-repeat center center;
  mask: url("../images/thing37-1.png") no-repeat center center;
  -webkit-mask-size: contain;
  mask-size: contain;
  mask-position: 0%;
}

.btn_04 {
  position: absolute;
  top: 7%;
  left: 11.25%;
  width: 77.5%;
  -webkit-mask: url("../images/thing42-1.png") no-repeat center center;
  mask: url("../images/thing42-1.png") no-repeat center center;
  -webkit-mask-size: contain;
  mask-size: contain;
  mask-position: 0%;
}

.btn_05 {
  position: absolute;
  top: 7%;
  left: 11.25%;
  width: 77.5%;
  -webkit-mask: url("../images/thing45-1.png") no-repeat center center;
  mask: url("../images/thing45-1.png") no-repeat center center;
  -webkit-mask-size: contain;
  mask-size: contain;
  mask-position: 0%;
}

.btn_06 {
  position: absolute;
  top: 7%;
  left: 11.25%;
  width: 77.5%;
  -webkit-mask: url("../images/thing49-1.png") no-repeat center center;
  mask: url("../images/thing49-1.png") no-repeat center center;
  -webkit-mask-size: contain;
  mask-size: contain;
  mask-position: 0%;
}

.btn_07 {
  position: absolute;
  top: 7%;
  left: 11.25%;
  width: 77.5%;
  -webkit-mask: url("../images/thing52-1.png") no-repeat center center;
  mask: url("../images/thing52-1.png") no-repeat center center;
  -webkit-mask-size: contain;
  mask-size: contain;
  mask-position: 0%;
}