/* 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 */
.bounce{
    animation: bounce 2s infinite ease-in-out;
}
@keyframes bounce {
    0% {
        transform: scale(1, 1) translate3d(0, 0, 0);
    }
    10% {
        transform: scale(1.05, .95) translate3d(0, 0, 0);
    }
    30% {
        transform: scale(.95, 1.05) translate3d(0, -8%, 0);
    }
    50% {
        transform: scale(1.02, .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);
    }
}