How Can I Efficiently Style Elements with Similar Class Names in CSS?

Using Wildcards in CSS for Classes: * and Attribute Selectors

When styling elements with multiple classes that follow a specific pattern, it can be tedious to create separate rules for each variation. This is where CSS wildcards come into play.

In your case, you want to apply a background color to multiple elements with class names like "tocolor-1", "tocolor-2", "tocolor-3", etc. While using a wildcard like ".tocolor-*" may seem like a solution, it does not work in CSS.

Instead, you can leverage attribute selectors to achieve this goal. An attribute selector allows you to target elements based on their attributes, such as class.

[class^="tocolor-"], [class*=" tocolor-"] {
  background: red;
}

In this code, the attribute selector [class^="tocolor-"] targets elements whose class attribute starts with "tocolor-", effectively matching all elements with class names like "tocolor-1", "tocolor-2", and so on.

The selector [class*=" tocolor-"] targets elements whose class attribute contains the substring "tocolor-" followed by a space character. This matches elements like "tocolor-highlight", "my-class tocolor-blue", etc.

By using attribute selectors, you can apply styles to a group of elements based on their shared pattern, without the need for verbose and repetitive class declarations.

For more information on CSS attribute selectors, refer to the following resources:

• [CSS Attribute Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Attribute_selectors)
• [CSS attribute selectors](https://www.w3schools.com/cssref/css_selectors.asp)

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