Check out example codes for "js remove specific css property". It will help you in understanding the concepts better.

Code Example 1

// OPTION 1:

el.style.removeProperty('zoom');

// OPTION 2:

el.style.zoom = "";

Code Example 2

$("#id").css({ 'background-color' : '', 'opacity' : '' });
$(".class").css({ 'background-color' : '', 'opacity' : '' });
//You can remove css by the above.

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