CSS Basic Class সিএসএস এর বেসিক ক্লাস
CSS, which stands for Cascading Style Sheets, is a fundamental style sheet language used primarily for styling and formatting web content. It was introduced in 1996, with the final version 3.0 of CSS being released in 1999.
Understanding CSS is essential for web developers as it complements HTML knowledge. Without a grasp of HTML, it's challenging to comprehend the concepts within CSS.
HTML tags are responsible for displaying content on web pages, but they often lack in providing an aesthetically pleasing presentation. This is where CSS comes into play.
Through CSS, we have the power to:
- Structure, shape, and position various elements on a web page.
- Define colors, sizes, shapes, and movement.
- Rapidly alter the styling of an entire website with minimal code changes.
Noteworthy points:
CSS serves as a design tool for HTML. It can be employed in two ways: internal and external.
- Internal CSS is typically placed within HTML tags using the <style>...</style> tag structure.
- External CSS involves writing CSS in a separate file and linking it to the HTML using a <link> tag.
- A vital distinction is that HTML files are saved with extensions like .html or .htm, whereas CSS files are saved with .css extensions.
Important usage considerations:
- In CSS, the use of (:) and (;) is essential, such as in the example: `.class { weight: 10px; }`.
- For ID and class selectors, curly brackets ({ }) are used to enclose the CSS properties and values.
In summary, CSS is a cornerstone for web developers, enabling the structuring, styling, and enhancement of web content. Its integration with HTML facilitates the creation of visually appealing and user-friendly websites. Mastery of CSS enhances a developer's ability to control the appearance and layout of web elements efficiently.