Using multiple classes within selectors. Pretty much definitive guide to using multiple classes in a CSS selector, including problems with IE 5 and 6 and one way of addressing them using conditional comments.
Recent articles
- GPT-5: Key characteristics, pricing and model card - 7th August 2025
- OpenAI's new open weight (Apache 2) models are really good - 5th August 2025
- ChatGPT agent's user-agent - 4th August 2025