JSFiddle - React, Tailwind, and code Playground
HTML
<p class="foo" style="background-color: magenta">text</p>
<p class="foo" style="background-color: magenta">text</p>
<p class="foo" style="background-color: magenta">text</p>
<p class="foo" style="background-color: magenta">text</p>
<hr>
<button id="reset">reset</button>
CSS
.foo {
color: cyan;
}
JavaScript
$(reset).click(() => {
$('.foo')
.removeAttr('style')
.removeAttr('class')
})