CSS Fundamentals and HTML Connection

Cascading Style Sheets (CSS) is a language separate from HTML used for designing the visual presentation of a web page, affecting aspects like font sizes, margins, and colors.

HTML elements are selected using CSS 'selectors' to apply styles defined within a 'declaration block'.

The 'declaration block' is enclosed in curly braces {} and contains 'properties' with their corresponding values.

A 'property' is a characteristic of an HTML element that can be customized using a 'value' assigned to it. Example: 'color: #FF0000' sets the text color to red.

CSS files typically have a '.css' extension and are separate from HTML files. This promotes organization and reusability.

CSS is a fundamental language for web development. It defines the visual presentation of web pages, complementing HTML's content structure.

CSS styles can be applied to multiple web pages by linking the CSS file to those pages. This promotes consistency in design.

The 'color' property specifies the text color of selected HTML elements. It accepts hexadecimal values representing various colors. For example, '#FF0000' denotes bright red.

The order in which stylesheets are linked to an HTML document affects how they are applied, with later stylesheets overriding earlier ones.

A technique that allows web pages to adjust their layout and content based on the device they are viewed on, such as a desktop, tablet, or mobile phone.

A CSS stylesheet containing the fundamental styles for a website, often applied globally to all pages.

Stylesheets that focus on specific sections or features of a website, allowing for targeted styling of dedicated parts.

Combining various built-in CSS properties to achieve the desired visual design for a website, based on a designer's mockup.

The <link> element in HTML is used to link external resources, predominantly stylesheets, to the HTML document. This allows the browser to understand and apply the styling defined in these external resources.

In the <link> element, the rel attribute defines the relationship between the linked resource and the HTML document. The most common value is stylesheet, indicating that the linked resource is a stylesheet for styling the document.

The href attribute in the <link> element specifies the URL of the external resource, such as a CSS stylesheet. This attribute tells the browser where to find and load the linked resource.

The style element in HTML is used to define inline styles directly within the HTML document. Inline styles apply only to the specific element they are added to. However, overuse of inline styles is often seen as a less organized approach to styling as it makes the HTML document more complex and difficult to maintain.

The background-color property in CSS sets the background color of an element. It can be applied to various HTML elements, including the entire webpage or individual elements.

The color property in CSS determines the text color of an element. It allows you to control the color of the text content within any HTML element.

Comments in CSS are used to add notes and explanations to the CSS code, making it more readable and understandable. CSS comments are enclosed within /* and */.

In CSS, each declaration inside a rule's declaration block ends with a semicolon (;). Semicolons are crucial for separating declarations within a rule and ensuring the proper application of styles.

The font-family property in CSS defines the typeface for the text content of an HTML element. It allows you to select different font styles and families for your text.

The font-size property in CSS controls the size of the text displayed within an HTML element. It allows you to adjust the font size using different units of measurement, such as pixels (px) or ems (em).

The em unit in CSS is a relative unit that scales proportionally to the font size of the parent element. It's valuable for creating responsive and scalable designs that adjust to the user's font settings.

The list-style-type property in CSS allows you to control the style of list items in unordered lists () and ordered lists (). You can change the bullet type, numbering, or even remove the markers entirely.

A navigation menu is often implemented as an unordered list (``) in HTML, but CSS allows you to style this list to visually resemble buttons and create a more interactive navigation experience.

Separating content from presentation is a key concept in web development. HTML defines the structure and content of a webpage, while CSS handles the visual presentation and styling. This separation allows for better maintainability, flexibility, and accessibility.

A "" element in an HTML document used to include CSS rules within a separate file, typically with a '.css' extension.

A single line of CSS code within an HTML element's "style" attribute, allowing direct styling for that element.

A set of CSS rules defined in the "<style>" element, which is usually placed within the "" section of an HTML document. These rules apply only to the current web page and cannot be reused across multiple pages.

The ability of CSS rules to apply to different elements, often from multiple sources. Rules later in the hierarchy (e.g., inline styles) override earlier ones.

Text is aligned to both the left and right margins of an HTML element, creating a justified appearance.

Text is aligned to the center of an HTML element, creating a centered appearance.

The property used to determine whether text is underlined or not. Setting it to "none" removes the default underline for links.

This property defines whether text is italicized or not. Typical values are 'italic' or 'normal' to specify its visual appearance.

This property defines the boldness of text. Typical values include 'normal' for regular weight, 'bold' for heavier weight, and 'lighter' for thinner weight.

A CSS property that controls how text is aligned within an element. Common values include left, right, center, and justify.

A technique of using a different HTML element like "" or "" to represent deleted or struck-out text instead of relying on CSS "text-decoration: line-through".