godot-website/_includes/thankyou.html

<style>
.thankyou-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 10;
}

.thankyou {
    background: var(--base-color);
    box-shadow: var(--more-shadow);
    padding: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    border-radius: 13px;
}

.thankyou-reading {
    font-size: 16px;
}

.thankyou-reading-list {
    font-size: 16px;
    margin: 0;
    margin-left: 48px;
    padding-left: 0;
}

.thankyou-donate {
    margin-bottom: 24px;
    text-align: center;
}

.btn.btn-donate {
    background-color: var(--primary-color);
    color: hsla(0, 0%, 100%, 0.9);
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 26px;
}


.thankyou h2 {
    text-shadow: var(--base-shadow);
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
}

.thankyou h2 .anchored-link {
	/* Hiding the anchored text automatically added on blogposts */
	display: none !important; 
}

.thankyou p {
    max-width: 620px;
    font-size: 25px;
}


@media (max-width: 768px) {
    .thankyou-wrapper {
        display: block;
    }

    .thankyou {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        overflow: scroll;
        padding: 30px 40px 18px 40px;
    }

    .thankyou-reading-list {
        margin-left: 24px;
    }

    .btn-close-thankyou-popup {
        width: 48px;
        height: 48px;
        display: flex;
        justify-content: center;
        align-items: center;
    }
}

.btn-close-thankyou-popup {
    cursor: pointer;
    position: absolute;
    top: 12px;
    right: 12px;
}

.btn-close-thankyou-popup img {
	background: transparent !important; /* for overwriting the style in the blogposts img */
}

@media (prefers-color-scheme: light) {
    .btn-close-thankyou-popup img {
        filter: invert(1);
        opacity: 0.75;
    }
}

</style>

<script>
	document.addEventListener('DOMContentLoaded', () => {
		const thankYouWrapper = document.getElementById('thank-you');
		// Close itself, when clicked outside of the popup area.
		thankYouWrapper.addEventListener('click', (e) => {
			if (e.target === thankYouWrapper) {
				thankYouWrapper.style.display = 'none';
			}
		});

		// Close with a close button.
		const thankYouBackButton = document.querySelector('.btn-close-thankyou-popup');
		thankYouBackButton.addEventListener('click', () => {
			thankYouWrapper.style.display = 'none';
		});

		// Open from the main download buttons.
		const downloadButtons = document.querySelectorAll('.btn-download');
		downloadButtons.forEach((it) => {
			it.addEventListener('click', () => {
				thankYouWrapper.style.display = '';
				document.querySelector('.btn.btn-donate').focus();
			});
		});

		// Open from the all downloads list.
		const downloadLinks = document.querySelectorAll('.download-link');
		downloadLinks.forEach((it) => {
			it.addEventListener('click', () => {
				thankYouWrapper.style.display = '';
			});
		});

		// Close the dialog when the user presses the escape key.
		document.addEventListener('keydown', (e) => {
			if (e.key === 'Escape') {
				thankYouWrapper.style.display = 'none';
			}
		});
	});
</script>


<div class="thankyou-wrapper" id="thank-you" style="display: none;">
	<div class="thankyou">
		<h2>Godot is downloading...</h2>

		<p class="thankyou-donate">
			Godot exists thanks to donations from people like you. Help us continue our work:
		</p>
		<a href="https://fund.godotengine.org" class="btn btn-donate">
			Make a Donation
		</a>

		<div class="btn-close-thankyou-popup">
			<img src="/assets/icons/cross.svg" width="24" height="24" alt="Close this popup" class="lightbox-ignore">
		</div>
	</div>
</div>