Can You Change the Last Letter\'s Color in CSS Without JavaScript?

Could You Change the Last Letter's Color with CSS?

Changing the color of a specific letter in a text string is typically considered difficult without resorting to JavaScript or other scripting languages. However, a unique solution emerged that takes advantage of two interesting features of CSS:

Reversed Text Flow:
CSS offers the property unicode-bidi: bidi-override; and direction: rtl; which allows for the reversal of text flow. By reversing the order in which letters appear in your HTML markup, you can display the word in reverse, enabling access to the last letter through CSS selectors.

::first-letter Pseudo-Element:
CSS provides the ::first-letter pseudo-element selector, which targets the first letter in a text element. By combining this with the reversed text flow, you can effectively select the last letter of the original string and apply your desired styling, such as changing its color.

Thus, by using these two techniques in tandem as seen in the following CSS code:

<code class="css">div {
  float: left;
  unicode-bidi: bidi-override;
  direction: rtl;
}

div::first-letter {
  color: blue;
}</code>

and the reversed HTML markup:

<code class="html"><div>gnirtS</div></code>

You achieve the effect of changing the color of the last letter ("g") while maintaining the original text direction for user readability. It's important to note that while this hacky but effective solution is feasible, you should carefully consider its suitability for your project with regards to browser compatibility and accessibility concerns.

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