HTML and CSS are two essential technologies used together to create visually appealing and well-structured web pages. HTML (Hypertext Markup Language) is responsible for defining the structure and content of a web page, while CSS (Cascading Style Sheets) is used to control the presentation and styling of the HTML elements.
Here's how HTML and CSS work together:
HTML Structure: HTML provides the foundation of a web page by defining its structure using a variety of tags. These tags represent different elements such as headings, paragraphs, images, links, forms, and more. HTML tags are placed within angle brackets (<>) and often come in pairs, with an opening tag and a closing tag.
CSS Styling: CSS is responsible for the visual design and styling of the HTML elements. It allows you to control properties like colors, fonts, layout, spacing, and more. CSS styles are defined in a separate CSS file or within the HTML document itself using the <style> tag. CSS selectors are used to target specific HTML elements and apply styling rules.
Linking CSS to HTML: To apply CSS styles to an HTML document, you need to link the CSS file to the HTML file. This is done by adding a <link> element within the <head> section of the HTML document. The <link> element specifies the location of the CSS file using the href attribute.
Example:
<head>
<link rel="stylesheet" href="styles.css">
</head>
Applying CSS Styles: Once the CSS file is linked, you can apply styles to HTML elements by selecting them using CSS selectors and defining the desired properties.
Example:
/* styles.css */
h1 {
color: blue;
font-size: 24px;
}
p {
color: red;
font-size: 16px;
}
In this example, the CSS rules select all <h1> elements and apply a blue color and a font size of 24 pixels. Similarly, all <p> elements are selected and styled with a red color and a font size of 16 pixels.
By combining HTML and CSS, you can create visually appealing web pages, customize the layout, and control the presentation of your content. CSS provides flexibility in terms of design, allowing you to separate the structure (HTML) from the style (CSS) and make consistent changes throughout your website by modifying the CSS file.
Remember to follow best practices, such as using proper semantic HTML tags, organizing your CSS code, and considering responsive design principles to ensure your website looks great on different devices and screen sizes.