Update CSS on RegEx Validation for input fields

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input field reproCSS.js text field validation
Image: Update CSS on RegEx Validation for input fields GIF

Here is a simple validation using repoCSS.js that lets you run RegEX validation on input fields and turns the input field background red when it detects a pattern.

If you are having trouble with the pen, try the archived copy on GitHub

RegEx Validation Snippet

See the Pen Regex test on value with reproCSS by Tommy Hodgins (@tomhodgins) on CodePen.0

Posted by:Saijo George

Digital Marketer with a strong focus on technical SEO and design. One of the top 100 makers on Producthunt, co-organizer of the SEO Meetup in Melbourne, an instructor at General Assembly. Worked with brands like Envato, AEON. Currently the SEO Strategy Director at Supple.