@-webkit-keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        -webkit-transform: translateY(0);
        -moz-transform: translateY(0);
        -ms-transform: translateY(0);
        transform: translateX(-50%) translateY(0);
    }

    40% {
        -webkit-transform: translateY(-20px);
        -moz-transform: translateY(-20px);
        -ms-transform: translateY(-20px);
        transform: translateX(-50%) translateY(-20px);
    }

    60% {
        -webkit-transform: translateY(-10px);
        -moz-transform: translateY(-10px);
        -ms-transform: translateY(-10px);
        transform: translateX(-50%) translateY(-10px);
    }
}

@-moz-keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        -webkit-transform: translateY(0);
        -moz-transform: translateY(0);
        -ms-transform: translateY(0);
        transform: translateX(-50%) translateY(0);
    }

    40% {
        -webkit-transform: translateY(-20px);
        -moz-transform: translateY(-20px);
        -ms-transform: translateY(-20px);
        transform: translateX(-50%) translateY(-20px);
    }

    60% {
        -webkit-transform: translateY(-10px);
        -moz-transform: translateY(-10px);
        -ms-transform: translateY(-10px);
        transform: translateX(-50%) translateY(-10px);
    }
}

@-ms-keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        -webkit-transform: translateY(0);
        -moz-transform: translateY(0);
        -ms-transform: translateY(0);
        transform: translateX(-50%) translateY(0);
    }

    40% {
        -webkit-transform: translateY(-20px);
        -moz-transform: translateY(-20px);
        -ms-transform: translateY(-20px);
        transform: translateX(-50%) translateY(-20px);
    }

    60% {
        -webkit-transform: translateY(-10px);
        -moz-transform: translateY(-10px);
        -ms-transform: translateY(-10px);
        transform: translateX(-50%) translateY(-10px);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        -webkit-transform: translateY(0);
        -moz-transform: translateY(0);
        -ms-transform: translateY(0);
        transform: translateX(-50%) translateY(0);
    }

    40% {
        -webkit-transform: translateY(-20px);
        -moz-transform: translateY(-20px);
        -ms-transform: translateY(-20px);
        transform: translateX(-50%) translateY(-20px);
    }

    60% {
        -webkit-transform: translateY(-10px);
        -moz-transform: translateY(-10px);
        -ms-transform: translateY(-10px);
        transform: translateX(-50%) translateY(-10px);
    }
}

.encircle {
    width: 60px;
    height: 60px;
    border-radius: 60px;
    border: solid 2px white;
    position: absolute;
    bottom: 25px;
    left: 50%;
    opacity: 0; /* Start fully invisible, JS will fade it in if not at the top of the page */
    transition: opacity 0.5s ease; /* Smooth fading transition */
}

.arrow {
    margin: 0 auto;
    margin-top: 13px;
    width: 30px;
    height: 30px;
    background-image: url(data:image/svg+xml;base64,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);
    background-size: contain;
}

.bounce {
    -webkit-animation: bounce 2s infinite;
    -moz-animation: bounce 2s infinite;
    -ms-animation: bounce 2s infinite;
    animation: bounce 2s infinite;
}