The Easiest Way to Add Dark Mode to Your Website
This article provides a tutorial on how to implement dark mode on a website using HTML, CSS, and JavaScript. It outlines the steps to create a basic structure, define color variables for light and dark themes, and use JavaScript to toggle between these themes while saving user preferences. The tutorial aims to enhance user experience by reducing eye strain and conserving battery life on devices with OLED screens.
- ▪The tutorial demonstrates how to add dark mode to a website using HTML, CSS variables, and JavaScript.
- ▪It includes steps for setting up HTML, defining CSS variables, and adding JavaScript for theme toggling.
- ▪Users can save their theme preference in local storage, ensuring the theme persists across page reloads.
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Story provenance
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/alikarbasicom/the-easiest-way-to-add-dark-mode-to-your-website-29c4 |
| Publication time | Tue, 26 May 2026 16:23:17 +0000 |
| Retrieval time | 2026-05-26T16:37:49.953Z |
| Last seen | 2026-05-26T16:37:49.953Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | QOdRgnI_lIox |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3948920) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Ali Karbasi Posted on May 26 The Easiest Way to Add Dark Mode to Your Website #webdev #darkmode #javascript #beginners Posted on Jul 28, 2024 3 min read 🤖 AI summary: This tutorial outlines a method for implementing dark mode on a website using HTML, CSS variables, and JavaScript.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
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