.custom-btn {
  width: 150px;
  height: 40px;
  color: #fff;
  border-radius: 5px;
  padding: 10px 25px;
  font-family: 'Lato', sans-serif;
  font-weight: 500;
  background: transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  display: inline-block;
   box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
   7px 7px 20px 0px rgba(0,0,0,.1),
   4px 4px 5px 0px rgba(0,0,0,.1);
  outline: none;
}
.custom-btn-big {
  /*width: 230px;  */
  height: 40px;

  color: #fff;
  border-radius: 5px;
  padding: 10px 25px;
  font-family: 'Lato', sans-serif;
  font-weight: 500;
  background: transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  display: inline-block;
   box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
   7px 7px 20px 0px rgba(0,0,0,.1),
   4px 4px 5px 0px rgba(0,0,0,.1);
  outline: none;
}
.btn-12{
  position: relative;
  right: 20px;
  bottom: 20px;
  border:none;
  box-shadow: none;
  width: 130px;
  height: 40px;
  line-height: 42px;
  -webkit-perspective: 230px;
  perspective: 230px;
}
.btn-12 span {
  background: rgb(0,172,238);
background: linear-gradient(0deg, rgba(0,172,238,1) 0%, rgba(2,126,251,1) 100%);
  display: block;
  position: absolute;
  width: 130px;
  height: 40px;
  box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
   7px 7px 20px 0px rgba(0,0,0,.1),
   4px 4px 5px 0px rgba(0,0,0,.1);
  border-radius: 5px;
  margin:0;
  text-align: center;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-transition: all .3s;
  transition: all .3s;
}
.btn-12 span:nth-child(1) {
  box-shadow:
   -7px -7px 20px 0px #fff9,
   -4px -4px 5px 0px #fff9,
   7px 7px 20px 0px #0002,
   4px 4px 5px 0px #0001;
  -webkit-transform: rotateX(90deg);
  -moz-transform: rotateX(90deg);
  transform: rotateX(90deg);
  -webkit-transform-origin: 50% 50% -20px;
  -moz-transform-origin: 50% 50% -20px;
  transform-origin: 50% 50% -20px;
}
.btn-12 span:nth-child(2) {
  -webkit-transform: rotateX(0deg);
  -moz-transform: rotateX(0deg);
  transform: rotateX(0deg);
  -webkit-transform-origin: 50% 50% -20px;
  -moz-transform-origin: 50% 50% -20px;
  transform-origin: 50% 50% -20px;
}
.btn-12:hover span:nth-child(1) {
  box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
   7px 7px 20px 0px rgba(0,0,0,.1),
   4px 4px 5px 0px rgba(0,0,0,.1);
  -webkit-transform: rotateX(0deg);
  -moz-transform: rotateX(0deg);
  transform: rotateX(0deg);
}
.btn-12:hover span:nth-child(2) {
  box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
   7px 7px 20px 0px rgba(0,0,0,.1),
   4px 4px 5px 0px rgba(0,0,0,.1);
 color: transparent;
  -webkit-transform: rotateX(-90deg);
  -moz-transform: rotateX(-90deg);
  transform: rotateX(-90deg);
}

.btn-13 {
  background-color: #89d8d3;
background-image: linear-gradient(315deg, #89d8d3 0%, #03c8a8 74%);
  border: none;
  z-index: 1;
}
.btn-13:after {
  position: absolute;
  content: "";
  width: 100%;
  height: 0;
  bottom: 0;
  left: 0;
  z-index: -1;
  border-radius: 5px;
   background-color: #4dccc6;
background-image: linear-gradient(315deg, #4dccc6 0%, #96e4df 74%);
  box-shadow:
   -7px -7px 20px 0px #fff9,
   -4px -4px 5px 0px #fff9,
   7px 7px 20px 0px #0002,
   4px 4px 5px 0px #0001;
  transition: all 0.3s ease;
}
.btn-13:hover {
  color: #fff;
}
.btn-13:hover:after {
  top: 0;
  height: 100%;
}
.btn-13:active {
  top: 2px;
}

.btn-14 {
  background: rgb(255,151,0);
  border: none;
  z-index: 1;
}
.btn-14:after {
  position: absolute;
  content: "";
  width: 100%;
  height: 0;
  top: 0;
  left: 0;
  z-index: -1;
  border-radius: 5px;
  background-color: #eaf818;
  background-image: linear-gradient(315deg, #eaf818 0%, #f6fc9c 74%);
   box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5);
   7px 7px 20px 0px rgba(0,0,0,.1),
   4px 4px 5px 0px rgba(0,0,0,.1);
  transition: all 0.3s ease;
}
.btn-14:hover {
  color: #000;
}
.btn-14:hover:after {
  top: auto;
  bottom: 0;
  height: 100%;
}
.btn-14:active {
  top: 2px;
}

.btn-15 {
  background: #b621fe;
  border: none;
  z-index: 1;
}
.btn-15:after {
  position: absolute;
  content: "";
  width: 0;
  height: 100%;
  top: 0;
  right: 0;
  z-index: -1;
  background-color: #663dff;
  border-radius: 5px;
   box-shadow:inset 2px 2px 2px 0px rgba(255,255,255,.5),
   7px 7px 20px 0px rgba(0,0,0,.1),
   4px 4px 5px 0px rgba(0,0,0,.1);
  transition: all 0.3s ease;
}
.btn-15:hover {
  color: #fff;
}
.btn-15:hover:after {
  left: 0;
  width: 100%;
}
.btn-15:active {
  top: 2px;
}