.simple-appearance {
    opacity: 0;
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.appearance-from-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.appearance-from-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.appearance-from-top {
    opacity: 0;
    transform: translateY(-50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.appearance-from-bottom {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.simple-appearance.visible, .appearance-from-right.visible, .appearance-from-left.visible, .appearance-from-top.visible, .appearance-from-bottom.visible {
    opacity: 1;
    transform: translateX(0) translateY(0);
}