With jQuery, you can change dynamically the css class of a html element.
By example, if i want change the color of a button id= »
btnsubmit » via a css class, by exemple from grey to purple when the button become activate.
First, i remove the disabled attribute :
$(‘#btnsubmit’).prop(« disabled », false);
After, you remove the old class affected to the button with the ancient color :
$(‘#btnsubmit’).removeClass(« buttonsubdisabled »);
Finally, you can add dynamically the new class containing the new background color for the button :
$(‘#btnsubmit’).addClass(« buttonsub »);
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