.invisible-ink {
    position: relative;
    display: inline-block;
    filter: blur(6px);
    color: transparent;
    transition: filter 0.4s ease, color 0.4s ease;
    text-align: center;
    line-height: 1;
    cursor: pointer;
}

.invisible-ink::before {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;

    background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAAI0lEQVQoU2NkYGBg+M9ARcDAwMDAwMAyGOQYgJEMBoAAGuYChWzn5BFAAAAAElFTkSuQmCC');
    opacity: 0.4;
    animation: noise 1s steps(10) infinite;
    transition: opacity 0.5s ease;
}

.invisible-ink.revealed {
    filter: blur(0);
    color: white;
}

.invisible-ink.revealed::before {
    opacity: 0;
    animation: none;
}