Description
HTML serves as the standard markup language for creating web pages. It defines the meaning and structure of web content, using elements like headings, paragraphs, images, and links. For instance, an <h1> tag denotes a main heading, and a <p> tag signifies a paragraph.
CSS, on the other hand, is used to format the layout and appearance of a webpage. It dictates aspects such as colors, fonts, text sizes, spacing between elements, positioning, background images, and responsiveness across different devices and screen sizes. The term “cascading” in CSS implies that styles applied to a parent element will also affect its child elements unless explicitly overridden.
There are three primary ways to incorporate CSS into an HTML document:
- Inline CSS: This method applies unique styles to a single HTML element using the
styleattribute directly within the HTML tag. For example,<h1 style="color:blue;">A Blue Heading</h1>would make the heading text blue. - Internal CSS: This defines styles for a single HTML page by placing CSS rules within a
<style>element in the<head>section of the HTML document. This allows for centralized styling of elements across that specific page. - External CSS: This is the most common and recommended method for adding CSS. Styles are defined in a separate
.cssfile, which is then linked to the HTML document using the<link>element in the<head>section. This approach allows a single CSS file to control the look of multiple web pages, making website-wide design changes efficient.
Key CSS properties include color for text color, font-family for font selection, font-size for text size, border for adding borders around elements, padding for space between content and its border, and margin for space outside the border. Learning HTML and CSS is often the first step for beginners looking to develop and style websites.
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