What is CSS?
CSS is the code that controls how a website looks: colors, fonts, spacing and layout on every screen size.
CSS (Cascading Style Sheets) is the language that styles web pages. While HTML says what the content is, CSS says how it looks: colors, fonts, sizes, spacing, borders and where things sit on the page. CSS is also how a layout changes between phones, tablets and computers. One stylesheet can control the whole site, so a single change, such as a brand color, can update every page at once.
Why it matters for your business: Good CSS keeps your brand look consistent everywhere and makes your site work on phones, where most visitors arrive.
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