How Can I Style Elements with Multiple Unique Identifiers Using Wildcards and CSS Attribute Selectors?

Styling Elements with Multiple Unique Identifiers Using Wildcards in CSS

In frontend development, it's often necessary to style elements based on both a common class and unique identifiers. Consider the following scenario:

We have multiple divs that we want to style with a red background using the class ".tocolor." However, we also need to uniquely identify each div with a number (e.g., tocolor-1, tocolor-2, tocolor-3).

Initially, we tried using wildcards to simplify the styling, as shown below:

.tocolor-* {
  background: red;
}

However, this method did not work. The solution to this problem lies in CSS attribute selectors. By targeting an element's class attribute, we can style elements based on specific patterns.

Attribute Selectors for Styling with Wildcards

There are two types of attribute selectors that can be used in this scenario:

• [attribute^="value"]: Matches elements whose attribute starts with the specified value.
• [attribute*="value"]: Matches elements whose attribute contains the specified value.

For the given HTML structure:

<div class="tocolor tocolor-1">   tocolor 1   </div>
<div class="tocolor tocolor-2">   tocolor 2   </div>
<div class="tocolor tocolor-3">   tocolor 3   </div>
<div class="tocolor tocolor-4">   tocolor 4   </div>

We can use the following attribute selectors:

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

• [class^="tocolor-"]: Matches all divs whose class attribute starts with "tocolor-".
• [class*=" tocolor-"]: Matches all divs whose class attribute contains the substring "tocolor-".

Usage and Demonstration

By using these attribute selectors, we can effectively style elements based on both the common ".tocolor" class and unique identifiers, as shown in the following demo:

[Live Demo](http://jsfiddle.net/K3693/1/)

Resources for Further Learning

• CSS Attribute Selectors: https://developer.mozilla.org/en-US/docs/Web/CSS/Attribute_selectors
• MDN Docs on Attribute Selectors: https://developer.mozilla.org/en-US/docs/Web/CSS/Attribute_selectors

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