/*swoopy*/
.frame {
  width: 90%;
  margin: 40px auto;
  text-align: center;
}
button {
  margin: 20px;
}

.custom-btn {
  width: 600px;
  height: 60px;
  color: #fff;
  border-radius: 50px;
  padding: 10px 25px;
  font-family: 'Roboto', sans-serif;
  font-weight: 500;
  font-size: 20px;
  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),
    inset -7px -7px 10px 0px rgba(0,0,0,.1),7px 7px 20px 0px rgba(0,0,0,.1),
   4px 4px 5px 0px rgba(0,0,0,.1);
  text-shadow:  2px 2px 3px rgba(255,255,255,.5),
              -4px -4px 6px rgba(116, 125, 136, .2);
  outline: none;
}

/* 10 */
.btn-10 {
  background: lightblue;
  color: #60abf7;
  border: none;
  transition: all 0.3s ease;
  overflow: hidden;
}
.btn-10:after {
  position: absolute;
  content: " ";
  top: 0;
  left: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  transition: all 0.3s ease;
  -webkit-transform: scale(.1);
  transform: scale(.1);
}
.btn-10:hover {
  color: #fff;
  border: none;
  background: transparent;
}
.btn-10:hover:after {
  background: #7fbfff;
  -webkit-transform: scale(1);
  transform: scale(1);
}