.pray font {
    font-size: 72px;
    font-weight: 900;
    text-shadow: 2px 2px 5px black;
    color: yellow;
}

@keyframes button-float {
    0% {
        top: -10%;
    }


    50% {
        top: -13%;
    }


    100% {
        top: -10%;
    }
}

.pray button {
    position: relative;
    top: -10%;
    font-size: 36px;
    font-weight: 900;
    text-shadow: 2px 2px 5px black;
    color: red;
    animation-name: button-float;
    animation-duration: 1s;
    animation-iteration-count: infinite;
    cursor: pointer;
}

@keyframes xiang-float {
    0% {
        top: 43%;
    }

    20% {
        top: 43%;
    }


    50% {
        top: 38%;
    }

    80% {
        top: 43%;
    }

    100% {
        top: 43%;
    }
}

#xiang {
    width: 640px;
    position: absolute;
    left: calc(50% - 320px);
    top: 43%;
    animation-name: xiang-float;
    animation-duration: 1.5s;
    animation-iteration-count: infinite;
}