The git reset -h command displays a description of all available options for the git reset command.

Cloning a Git repository creates a complete copy of the repository on your local machine, allowing you to work on it independently.

The --global option applies Git configurations to your entire Git environment, affecting all repositories you use.

The git commit -a -m "Refactor code base" command adds all modified files to the staging area and commits them with the specified message.

GitHub and Bitbucket are popular online hosting services that provide features for version control, collaboration, and code management using Git.

The background-color: CSS property is used to set the background color of an HTML element.

The opening tag in HTML is the start of a specific element, while the closing tag marks the end of the element.

The target="_blank" attribute in an <a> tag opens the link in a new tab or window.

Inline CSS is applied directly to an HTML element using the style attribute. It has the highest priority but is less maintainable, as it's embedded within the HTML structure.

Embedded CSS is placed within a <style> tag within the HTML document. It allows for styling a single page and has a higher precedence than external stylesheets.

External CSS is a separate file (.css) linked to the HTML document using the tag. It's considered the best practice for organization and reusability.

The visibility: hidden; property hides the element from view but still occupies space on the page. Other elements will flow around the hidden element.

The display: none; property removes the element entirely from the page layout. It no longer occupies any space, and other elements will fill the gap.

The padding property controls the space between the content of an element and its border.

The margin property controls the space between the element's border and the surrounding elements.

The line-height property sets the height of lines of text, influencing the spacing between lines.

The <a> tag is used to create a hyperlink in HTML. It allows users to navigate to a specific web page or resource. The href attribute within the <a> tag specifies the URL of the target destination.

The href attribute is used within the <a> tag to specify the URL (Uniform Resource Locator) of the web page or resource that the link points to. It determines where the user will be directed when they click on the link.

Block elements, like <p> (paragraph) and <h1> (heading), occupy the entire width of their container and automatically start on a new line. Inline elements, like <span> and <b>, only take up the space required by their content and appear on the same line as surrounding text.

The <input type="checkbox"> tag is used to create a checkbox input element in HTML. Checkboxes allow users to select or deselect an option.

The id attribute in HTML is used to give an element a unique identifier. This identifier can be used to style the element or interact with it using JavaScript.

To add a comment to your HTML code, you can use the <!-- and --> tags. Comments are ignored by the web browser and are useful for adding notes or temporarily disabling code.

The <footer> tag is used to define a footer section in an HTML document. Footers typically contain information like copyright details, contact information, or links to other pages.

The <tr> (table row) tag is used in HTML to define a row within a table structure. Each row contains one or more cells (<td>) that represent table data.

It's a CSS property that adjusts a cursor's appearance when hovering over an element, changing the default arrow into an interactive pointer for user feedback.

Test-Driven Development (TDD) is a software development approach where tests are written before writing any code. This forces developers to think about the desired functionality and its requirements upfront. It follows a cycle of writing tests, making the tests pass with code, and then refactoring the code while ensuring tests remain green.

A unit test in TDD focuses on testing a single component or function of your code in isolation. This granular approach allows you to pinpoint and fix issues easily.

The "Red-Green-Refactor" cycle is the heart of TDD. It involves writing a test that fails (red), writing code to make the test pass (green), and then refactoring the code to improve its structure and clarity while ensuring the test remains passing. It's an iterative process.

The three main steps in the TDD cycle are:

1. Write tests: Write a test that's expected to fail.
2. Write code: Implement the code to make the test pass.
3. Refactor: Improve your code's structure and readability without changing its functionality, ensuring the tests still pass.

The order property in CSS is used to change the order of elements within a Flex container. It allows you to rearrange elements by assigning them numerical values, with lower values appearing earlier in the order.

The float: right; CSS property positions an element to the right side of the container, while clear: both; prevents other floated elements from appearing next to it, ensuring a clean break.

The color: blue; CSS property sets the text color of the specified element. You can use different color names or hexadecimal values to achieve various text colors.

The width: 100%; CSS property sets the width of the element with the ID main to occupy 100% of its parent container's width.

The padding property in CSS is used to add space between the content of an element and its border. This space is not part of the element's width or height.

When display: flex; and justify-content: space-between; are applied to a container, the flex items (children of the container) are evenly spaced within the container, with the first and last items pushed to the edges.

The list-style-type property in CSS is used to specify the type of bullet or marker for a list. This property determines how each list item is represented (e.g., bullet points, numbers, Roman numerals).

Multiple CSS classes can be used within the same HTML element. This allows for applying multiple styles to an element, providing flexibility and complex styling options.

The border-radius property in CSS is used to create rounded corners for elements such as images. Setting it to 50% creates a circular shape.