.alcohol_button{
  text-align:center;
}

*,
*:before,
*:after {
  -webkit-box-sizing: inherit;
  box-sizing: inherit;
}

html {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  font-size: 62.5%;/*rem算出をしやすくするために*/
}

.btn,
a.btn,
button.btn {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.5;
  position: relative;
  display: inline-block;
  padding: 1rem 4rem;
  cursor: pointer;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
  text-align: center!important;
  vertical-align: middle;
  text-decoration: none;
  letter-spacing: 0.1em;
  color: #212529;
  border-radius: 0.5rem;
  font-family: 游ゴシック体, YuGothic, "游ゴシック Medium", "Yu Gothic Medium", 游ゴシック, "Yu Gothic", メイリオ, sans-serif;  
}

a.btn-flat {
  display:inline-block;
  justify-content: center;
  overflow: hidden;
  padding: 1.5rem 6rem;
  color: #fff;
  border-radius: 0;
  background: #000;
  text-align: center!important;
}

a.btn-flat span {
  position: relative;
}

a.btn-flat:before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100px;
  height: 100px;
  content: '';
  -webkit-transition: all .5s ease-in-out;
  transition: all .5s ease-in-out;
  -webkit-transform: translateX(-80%) translateY(-25px);
  transform: translateX(-80%) translateY(-25px);

  border-radius: 50%;
  background: #eb6100;
}

a.btn-flat:hover:before {
  width: 400px;
  height: 400px;

  -webkit-transform: translateX(-1%) translateY(-175px);

  transform: translateX(-1%) translateY(-175px);
}

@media screen and (max-width:768px) { 
   {/* スクリーンサイズが768px以下の場合に適用 */}

  
@media screen and (max-width:480px) { 
   {/* スクリーンサイズが480px以下の場合に適用 */} 

.btn,
a.btn,
button.btn {
  font-size: 16px;
  }
  }