body{
  overflow: hidden;
  background: #1f1f10;
}

input{
  position:absolute;
  display: none;
}

*{
  -webkit-touch-callout: none;
  -webkit-user-select:none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.menu{
  margin: 0 auto;
  position:absolute;
  top: 47%;
  left: 50%;
  margin-left: -24px;
  margin-top: -25px;
}

.btn{
  width: 70px;
  height: 70px;
  cursor: pointer;
  overflow: hidden;
  position: absolute;
  border-radius: 10px;
}

.material-icons.md-24{
  font-size: 36px;
  color: #826BAC;
}

.btn{
  background: #826BAC;
  font-size: 15px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
    -ms-flex-pack: center;
      justify-content: center;
  -webkit-box-align: center;
    -ms-flex-align: center;
      align-items: center;

  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.12);
  transition: all 0.3s cubic-bezier(.25, .8, .25, 1);
}

.btn:not(:first-child){
  opacity: 0;
  -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=0)";
  z-index: -2;

  -webkit-transition: all 0.8s cubic-bezier(.85, -.41, .20, 2.44);
  transition: all 0.8s cubic-bezier(.85, -.41, .20, 2.44);
}

.btn:nth-child(2){
  top: 0px;
  -webkit-transition-delay: 0s;
  transition-delay: 0s;
}
.btn:nth-child(3) {
  top: 0px;
  -webkit-transition-delay: 0.1s;
  transition-delay: 0.1s;
}
.btn:nth-child(4) {
  top: 0px;
  -webkit-transition-delay: 0.2s;
  transition-delay: 0.2s;
}
.btn:nth-child(5) {
  top: 0px;
  -webkit-transition-delay: 0.3s;
  transition-delay: 0.3s;
}
.btn:nth-child(6) {
  top: 0px;
  -webkit-transition-delay: 0.4s;
  transition-delay: 0.4s;
}
.btn:nth-child(7) {
  top: 0px;
  -webkit-transition-delay: 0.5s;
  transition-delay: 0.5s;
}
.btn:nth-child(8) {
  top: 0px;
  -webkit-transition-delay: 0.7s;
  transition-delay: 0.6s;
}
.btn:nth-child(9) {
  top: 0px;
  -webkit-transition-delay: 0.7s;
  transition-delay: 0.7s;
}

input#toggle:checked ~ #show-menu .btn:nth-child(2){
  top: -150px;
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
  opacity: 1;
}
input#toggle:checked ~ #show-menu .btn:nth-child(3) {
  top: -100px;
  left: 100px;
  opacity:1;
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
}
input#toggle:checked ~ #show-menu .btn:nth-child(4) {
  left: 150px; 
  opacity:1;
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
}
input#toggle:checked ~ #show-menu .btn:nth-child(5) {
  top: 100px;
  left: 100px;
  opacity: 1;
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
}
input#toggle:checked ~ #show-menu .btn:nth-child(6) {
  top: 150px;
  opacity: 1;
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
}
input#toggle:checked ~ #show-menu .btn:nth-child(7) {
  top: 100px;
  left: -100px;
  opacity: 1;
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
}
input#toggle:checked ~ #show-menu .btn:nth-child(8) {
  left: -150px;
  opacity: 1;
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
}
input#toggle:checked ~ #show-menu .btn:nth-child(9) {
  top: -100px;
  left: -100px;
  opacity: 1;
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)";
}

.menuBtn, .closeBtn{
  position: absolute;
  transition: all 0.2s ease;

}

.closeBtn{
  opacity: 0;
  transform: translateY(50px);
}

input#toggle:checked ~ #show-menu .btn .menuBtn{
  opacity: 0;
  transform: translateY(-50px);

}

input#toggle:checked ~ #show-menu .btn .closeBtn {
  opacity: 1;
  transform: translateY(0px);
}