// reset & normalize
* {
  text-decoration: none;
}

html {
  font-size: 62.5%; // 62.5% = 1rem = 10px
  padding: 3rem;
  color: #614f38;
}

body {
  font-size: 1.6rem;
}

// Start!
.btn {
  display: inline-block;
  border: 1px solid;
  overflow: hidden;
  position: relative;
  background: #614f38;
  color:#fff;
  padding:1rem 2rem;
  &:after {
    background: #fff;
    content: "";
    height: 155px;
    left: -75px;
    opacity: .2;
    position: absolute;
    top: -50px;
    transform: rotate(35deg);
    transition: all 550ms cubic-bezier(0.19, 1, 0.22, 1);
    width: 50px;
    z-index: 1;
  }

  &:hover {

    &:after {
      left: 120%;
      transition: all 550ms cubic-bezier(0.19, 1, 0.22, 1);
    }
  }
}