/* 按鈕閃光 S */
.light {
  width: 100%;
  text-align: center;
  font-size: 2rem;
  overflow: hidden;
  display: block;
  position: relative;
}

.light:after {
  content: "";
  display: block;
  position: absolute;
  left: -150%;
  top: 0;
  width: 50%;
  height: 100%;
  background: -webkit-linear-gradient(
    left,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.7) 100%
  );
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.7) 100%
  );
  -webkit-transform: skewX(-25deg);
  transform: skewX(-25deg);
  animation: light 3s infinite ease-in-out;
}

@keyframes light {
  0% {
    left: -150%;
  }

  70% {
    left: 150%;
  }

  100% {
    left: 150%;
  }
}
/* 按鈕閃光 S */

/* 按鈕跳動-果凍 */
.ani-bounce {
  animation: bounce 2s infinite ease-in-out;
}
.ani-scale {
  animation: scale 1s infinite ease-in-out;
}
.ani-scale_2 {
  animation: scale 1s infinite ease-in-out;
  animation-delay: .5s;
}
.ani-scale_3 {
  animation: scale 1.2s infinite ease-in-out;
}
.ani-float-horizontal {
  animation: float-horizontal 1.5s ease-in-out infinite;
}
.ani-float-vertical{
  animation: float-vertical 1.5s ease-in-out infinite;
}
.ani-float-vertical-2{
  animation: float-vertical 2s ease-in-out infinite;
}
.ani-float-vertical-3{
  animation: float-vertical 1.5s ease-in-out infinite;
  animation-delay: .7s;
}
.ani-twinkle{
  animation: twinkle 2s infinite ease-in-out;
}
@keyframes bounce {
  0% {
    transform: scale(1, 1) translate3d(0, 0, 0);
  }
  10% {
    transform: scale(1.05, 0.95) translate3d(0, 0, 0);
  }
  30% {
    transform: scale(0.95, 1.05) translate3d(0, -8%, 0);
  }
  50% {
    transform: scale(1.02, 0.97) translate3d(0, 0, 0);
  }
  57% {
    transform: scale(1, 1) translate3d(0, -2%, 0);
  }
  64% {
    transform: scale(1, 1) translate3d(0, 0, 0);
  }
  100% {
    transform: scale(1, 1) translate3d(0, 0, 0);
  }
}
@keyframes scale {
  0% {
    transform: scale(1, 1);
  }
  50% {
    transform: scale(1.1, 1.1);
  }
  100% {
    transform: scale(1, 1);
  }
}
@keyframes float-horizontal {
  0% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(20px);
  }
  100% {
    transform: translateX(0);
  }
}
@keyframes float-vertical {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
  100% {
    transform: translateY(0);
  }
}
@keyframes twinkle {
  0%,
  100% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
}