jQuery 1.5.2, HTML, CSS, JavaScript
Change class name on click in jQuery
jQuery 2.2.4, HTML, CSS, JavaScript
No-Library (pure JS), HTML, CSS, JavaScript
jQuery 3.3.1, HTML, CSS, JavaScript
author(s): Torstein Hønsi
Mootools 1.6.0, HTML, CSS, JavaScript
EE
runs very fast
jQuery 3.1.1, HTML, CSS, JavaScript
jQuery 1.9.1, HTML, CSS, JavaScript