Skip to content

feat: implement "Back-to-Top" button with smooth scroll and fade animation (#35) #36

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
fahimahammed merged 1 commit into from
Oct 7, 2025
+103 −27
Merged

feat: implement "Back-to-Top" button with smooth scroll and fade animation (#35) #36

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
30 changes: 30 additions & 0 deletions assets/back-to-top.js
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
(function () {
const btn = document.getElementById("back-to-top");
if (!btn) return;

const toggleVisibility = () => {
if (window.scrollY > 0) {
btn.style.display = "flex";
requestAnimationFrame(() => {
btn.style.opacity = "1";
btn.style.transform = "translateY(0)";
});
} else {
btn.style.opacity = "0";
btn.style.transform = "translateY(10px)";
setTimeout(() => {
if (window.scrollY === 0) btn.style.display = "none";
}, 300);
}
};

const scrollToTop = (e) => {
e && e.preventDefault();
window.scrollTo({ top: 0, behavior: "smooth" });
};

btn.addEventListener("click", scrollToTop);
window.addEventListener("scroll", toggleVisibility, { passive: true });
window.addEventListener("resize", toggleVisibility);
toggleVisibility();
})();
40 changes: 39 additions & 1 deletion assets/custom.css
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6,11 +6,49 @@ body::before {
font-size: 1.2rem;
font-weight: bold;
padding: 10px;
background-color: #3F51B5;
background-color: #3f51b5;
color: white;
}

a[href$=".pdf"] {
color: #ff5722;
font-weight: bold;
}

/* Back-to-Top Button */
.back-to-top {
position: fixed;
right: 20px;
bottom: 24px;
width: 50px;
height: 50px;
border-radius: 20%;
border: none;
background: #3f51b5;
color: #fff;
font-size: 22px;
cursor: pointer;
opacity: 0;
transform: translateY(10px);
transition: opacity 0.3s ease, transform 0.3s ease, background 0.3s ease;
z-index: 9999;
display: none; /* hidden by default */
align-items: center;
justify-content: center;
}

.back-to-top:hover,
.back-to-top:focus {
background: #303f9f;
outline: none;
}

.back-to-top:active {
transform: translateY(1px);
}

@media (prefers-reduced-motion: reduce) {
.back-to-top {
transition: none;
}
}
60 changes: 34 additions & 26 deletions index.html
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,32 +1,40 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Learn PostgreSQL</title>
<link rel="stylesheet" href="//cdn.jsdelivr.net/npm/docsify/themes/vue.css" />
<link rel="stylesheet" href="assets/custom.css" />
</head>
<body>
<!-- Docsify container -->
<div id="app"></div>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width,initial-scale=1" />
<title>Learn PostgreSQL</title>
<link
rel="stylesheet"
href="https://cdn.jsdelivr.net/npm/docsify/themes/vue.css"
/>
<link rel="stylesheet" href="assets/custom.css" />
</head>
<body>
<!-- Docsify container -->
<div id="app"></div>

<!-- Docsify Core -->
<script src="//cdn.jsdelivr.net/npm/docsify@4/lib/docsify.min.js"></script>
<!-- Back to Top Button -->
<button id="back-to-top" class="back-to-top" type="button">&#8593;</button>

<!-- Docsify Configuration -->
<script>
window.$docsify = {
name: 'Learn PostgreSQL',
repo: 'fahimahammed/learn-postgresql',
loadSidebar: '_sidebar.md', // Ensure _sidebar.md exists in the repo root
subMaxLevel: 2,
search: 'auto',
themeColor: '#3F51B5'
}
</script>
<!-- Docsify Core -->
<script src="https://cdn.jsdelivr.net/npm/docsify@4/lib/docsify.min.js"></script>

<!-- Docsify Plugins -->
<script src="//cdn.jsdelivr.net/npm/docsify/lib/plugins/search.min.js"></script>
</body>
<!-- Docsify Configuration -->
<script>
window.$docsify = {
name: "Learn PostgreSQL",
repo: "fahimahammed/learn-postgresql",
loadSidebar: "_sidebar.md", // Ensure _sidebar.md exists in the repo root
subMaxLevel: 2,
search: "auto",
themeColor: "#3F51B5",
};
</script>

<!-- Docsify Plugins -->
<script src="https://cdn.jsdelivr.net/npm/docsify/lib/plugins/search.min.js"></script>
<!-- Back to Top Script -->
<script src="assets/back-to-top.js"></script>
</body>
</html>