/* ボタンアニメーション用 */
.bt_anim {
  display: inline-block;
  text-align: center;
  text-decoration: none;
  outline: none;
}
.bt_anim::before,
.bt_anim::after {
  position: absolute;
  z-index: -1;
  display: block;
  content: '';
}
.bt_anim,
.bt_anim::before,
.bt_anim::after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-transition: all .3s;
  transition: all .3s;
}

/* ローディング用 */
#loading{
  width: 100%;
  text-align: center;
  font-size: 100%;
}