skyderby/skyderby

.button--minimal {
  margin: 0;
  padding: 0;
  border-width: 0;
  border-color: transparent;
  background: transparent;
  font-weight: 400;
  cursor: pointer;
  position: relative;
  font-size: 20px;
  font-family: inherit;
  padding: 5px 12px;
  overflow: hidden;
  border-width: 0;
  border-radius: 4px;
  background: transparent;
  -webkit-transition: all 0.5s cubic-bezier(0.02, 0.01, 0.47, 1);
  transition: all 0.5s cubic-bezier(0.02, 0.01, 0.47, 1);
}
.button--minimal:after {
  position: absolute;
  bottom: 0;
  left: 10px;
  width: calc(100% - 20px);
  height: 1px;
  background: lighten(#777, 20%);
  content: '';
  opacity: 0.65;
  -webkit-transition: opacity 0.5s cubic-bezier(0.02, 0.01, 0.47, 1), -webkit-transform 0.5s cubic-bezier(0.02, 0.01, 0.47, 1);
  transition: opacity 0.5s cubic-bezier(0.02, 0.01, 0.47, 1), -webkit-transform 0.5s cubic-bezier(0.02, 0.01, 0.47, 1);
  transition: transform 0.5s cubic-bezier(0.02, 0.01, 0.47, 1), opacity 0.5s cubic-bezier(0.02, 0.01, 0.47, 1);
  transition: transform 0.5s cubic-bezier(0.02, 0.01, 0.47, 1), opacity 0.5s cubic-bezier(0.02, 0.01, 0.47, 1), -webkit-transform 0.5s cubic-bezier(0.02, 0.01, 0.47, 1);
}
.button--minimal:before {
  position: absolute;
  bottom: 0;
  left: 10px;
  width: calc(100% - 20px);
  height: 1px;
  background: lighten(#777, 20%);
  content: '';
  opacity: 0.65;
  -webkit-transition: opacity 0.5s cubic-bezier(0.02, 0.01, 0.47, 1), -webkit-transform 0.5s cubic-bezier(0.02, 0.01, 0.47, 1);
  transition: opacity 0.5s cubic-bezier(0.02, 0.01, 0.47, 1), -webkit-transform 0.5s cubic-bezier(0.02, 0.01, 0.47, 1);
  transition: transform 0.5s cubic-bezier(0.02, 0.01, 0.47, 1), opacity 0.5s cubic-bezier(0.02, 0.01, 0.47, 1);
  transition: transform 0.5s cubic-bezier(0.02, 0.01, 0.47, 1), opacity 0.5s cubic-bezier(0.02, 0.01, 0.47, 1), -webkit-transform 0.5s cubic-bezier(0.02, 0.01, 0.47, 1);
}
.button--minimal:hover,
.button--minimal:focus {
  opacity: 0.9;
}
.button--minimal:hover:after,
.button--minimal:focus:after {
  opacity: 1;
  -webkit-transform: translateX(-10px) rotate(0.001deg);
          transform: translateX(-10px) rotate(0.001deg);
}
.button--minimal:hover:before,
.button--minimal:focus:before {
  opacity: 1;
  -webkit-transform: translateX(10px) rotate(0.001deg);
          transform: translateX(10px) rotate(0.001deg);
}