CSS, or cascading style sheets, is one of the most used programming languages for designing and styling web pages. In this guide, I'll provide you with a complete introduction to CSS, from its basic concepts to its more advanced properties. If you're new to web development or just want to improve your CSS skills, you're in the right place!
What is CSS?
CSS is a styling language used to control the layout and visual appearance of a web page. Through CSS, you can modify HTML elements such as text, images, colors, margins, and more. CSS allows you to separate the content and structure of a web page from its design, making it easy to make changes and improvements to the visual appearance of a website without affecting its underlying content.
Integrating CSS into HTML
To use CSS on your website, you can do it in three main ways: inline, embedded, or as an external file. The most common form is in the form of an external file, as this promotes better organization and reuse of styles throughout the website.
To link an external CSS file, you can use the ` tag` in section `
` from your HTML file. Here is an example:In this example, we are linking a file called "styles.css" that contains all the style rules we want to apply to our web page.
Basic syntax and selectors
Style rules in CSS follow a specific syntax. Each rule has two main parts: a selector and a declaration. Selectors indicate which HTML elements a particular style will be applied to, while declarations define the style itself.
Here is an example of a basic CSS style rule:
p { color: blue; }
In this example, the `p` selector indicates that the style will be applied to all paragraphs `
` on our page. The `color: blue;` statement sets the text color to blue.
CSS properties and values
CSS offers a wide range of properties to modify the appearance of HTML elements. Some of the most common properties include:
– `color` to set the text color.
– `background` to set the background of an element.
– `font-size` to modify the text size.
– `margin` and `padding` to adjust the margins and spacing of an element.
– `border` to create borders around an element.
Each property can have several possible values. For example, to set the font size, you can use a numeric value followed by a unit of measurement, such as `px` for pixels or `em` for aspect ratios relative to the parent element's font size.
p { font-size: 16px; color: #333; background: #f5f5f5; margin: 10px; padding: 5px; border: 1px solid black; }
Additional resources and conclusions
CSS is a powerful language that allows you to control the visual appearance of your web pages. With this article, you've learned the basics of CSS, how to link it in your HTML, the basic syntax of the rules, and some of the most common properties.
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I hope this guide was helpful to you! Don't hesitate to contact me at https://nelkodev.com/contacto if you have any questions or need additional help with CSS or any other topic related to web development.
Frequently asked questions
1. What is the difference between inline, embedded and external CSS?
– Inline CSS is applied directly to an HTML element using the `style` attribute.
– The embedded CSS is located inside the ` tag