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Home - Scripts - Website Development

02 December 2025

Creating a Sticky Sidebar with CSS Only

by Rattanjot S – 3 minute read – 78 views

Web Design

Performance stats provide a quick snapshot of key metrics, showing completed projects, task progress, and productivity percentages for better tracking and decision-making daily.

Key Points

85% of projects are completed on time, demonstrating a consistently high-quality workflow.
60% of tasks are underway, assisting teams in planning their workload efficiently.
92% of targets met this month, highlighting steady performance and improvement trends.

This documentation explains a modern webpage layout that includes a sticky sidebar with glassmorphism styling and a smooth user interface built using only HTML and CSS — no JavaScript. This type of layout is widely used in web design services, custom web development, and modern website development to create visually appealing and user-friendly designs interfaces.

The layout consists of:

A glassy, floating sidebar that sticks while scrolling
A clean, wide content area
Interactive navigation menu with gradient hover effects
Responsive grid system for all screen sizes
Smooth UI components such as cards, profile section, and stats section

This document includes an in-depth explanation of how the markup and styling work together to create the final design.

HTML Structure

                                        <div class="container">
    <aside class="sidebar"> ... </aside>
    <main class="content"> ... </main>
</div>

aside contains the sidebar
main contains the main article content

Layouts like these are often used in custom web development projects where user experience is a key focus role.

Profile Section

                                        <div class="profile">
    <div class="avatar">JD</div>
    <h2>John Doe</h2>
    <p>Web Developer</p>
</div>

A circular avatar with initials
Visually centered and styled with gradients

Such elements are commonly part of professional website development services to strengthen branding and personalization.

Stats Section

                                         <div class="stats">
    <div class="stat-item">
        <span class="stat-label">Projects</span>
        <span class="stat-value">24</span>
    </div>
</div>

Number of projects
Completed tasks
In-progress tasks

Stats components like these are often created in web design services to showcase key information clearly.

Main Content

                                        <main class="content">
    <h1>Sticky Sidebar with CSS</h1>
    <p>This modern sidebar demonstrates...</p>


    <div class="card">
        <h3>How It Works</h3>
        ...
    </div>
</main>

h1 uses gradient text
Cards highlight important information
Long paragraphs demonstrate scrolling behavior

Sticky layouts are a popular feature in web development for enhancing navigation and user experience readability.

CSS

                                          .sidebar {
            position: sticky;
            top: 40px;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 24px;
            padding: 32px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

Explanation

position: sticky makes the sidebar scroll normally until it reaches 40px from the top, where it becomes fixed.
It behaves like a hybrid between relative and fixed.
Semi-transparent white background
Blurred background objects
Soft shadow for a floating effect

These types of glassmorphism interfaces are widely used in advanced web design services to deliver a premium, modern look UI.

Final Words

This layout demonstrates how to create a polished, interactive interface using only HTML and CSS. Techniques like sticky elements, glassmorphism, and responsive cards are vital in modern website development services and custom web development to improve usability and aesthetics. The sticky sidebar, in particular, offers smooth navigation, making it a valuable feature in high-quality web design services.