The cursor property in CSS is used to control the appearance of the mouse cursor when it hovers over an element. It allows you to change the shape or design of the cursor based on the function or behavior of the element. The cursor property can take a variety of values, such as pointer, default, help, etc., to specify different cursor styles.

Here's an example of how to use the cursor property in CSS:

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button {
  cursor: pointer;
}

This CSS code sets the cursor style to a hand-like pointer when hovering over a button element, indicating to users that the button can be clicked.

You can find more information and see different cursor styles in the Mozilla Developer Network (MDN) documentation: CSS cursor property

To set Prettier as a default formatter for your editor, you need to install the Prettier extension for your editor and configure your editor to use Prettier as the default formatter.

Here's an example of how to set up Prettier as the default formatter for Visual Studio Code:

1. Install the Prettier extension for VS Code.

2. Open the Command Palette by pressing Ctrl+Shift+P (Windows, Linux) or Cmd+Shift+P (Mac).

3. Search for "Preferences: Open User Settings" and select it.

4. In the search bar of the settings window, type "formatter".

5. Under "Editor: Default Formatter", select "esbenp.prettier-vscode".

Now, whenever you save a file, Prettier will format it automatically based on your preferred settings. You can also use the keyboard shortcut Shift+Alt+F to format the current file.

Note: These steps may vary slightly depending on your editor and the Prettier extension you're using.

To change the mouse cursor when hovering over a button in CSS, use the cursor property:

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button:hover {
  cursor: pointer;
}

You can also use other cursor values like crosshair, not-allowed, alias, or default. For more information, read this page on MDN.

You can add a custom cursor to your page using the cursor CSS property.

For example, to add a custom image as a cursor, use the following syntax:

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cursor: url(path/to/image.png), auto;

The auto value is used to set the fallback cursor if the image fails to load correctly.

You can also use the following built-in cursors, without specifying an image:

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cursor: pointer;
cursor: crosshair;
cursor: default;
cursor: move;
cursor: help;
cursor: none;

For more information, please refer to MDN's documentation on the CSS cursor property.

If you're using HTML, CSS and JavaScript, you can modify the hover cursor by applying the cursor property to the page element. For example, to change the cursor when hovering over the button element, you can write the below code.

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button:hover {
  cursor: pointer;
}

You can adjust the cursor property to other values like text, not-allowed and default. For more information, view this MDN article.

You can change the list and subheading default styling in HTML with CSS. To do so, use the display property to change the element's display mode and then use margin or padding to apply the desired distance to the element.

For example, if you want to modify the list style and add an extra margin, use this code:

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ul {
  display: block;
  margin: 12px 0;
}

You can also use classes or IDs to target specific elements and then apply the rules accordingly. For more information on styling lists, you can check out this W3Schools tutorial: https://www.w3schools.com/css/css_list.asp