Wordpress how to hide a checkbox using CSS - css

Question

I would like to hide the default checkbox from my light/darkmode toggle featured on my Wordpress blog. (Using single.php)
I inspected the code using the console and adjusted the CSS using the code below in the preview which worked.
However, when I saved and ran it properly, I didn't get the same outcome.
input[type=checkbox], input[type=radio] {
box-sizing: border-box;
padding: 0;
display: none !important;
}
<section id="blog-post">
<div class="container-fluid">
<div class="row justify-content-center">
<div class="col-10">
<div class="checkbox mt-3 text-right">
<input type="checkbox" id="darkSwitch">
<label for="darkSwitch"><i class="far fa-lightbulb fa-lg"><i>Light switch</i></i></label>
</div>
<div class="row my-5 justify-content-center">
<div class="col-sm-12 col-md-10 col-lg-8 mt-3">
<h2 class="subheader mt-3">Lorem Ipsum Dolor Amet.</h2>
<div class="dropcap">
<pre></pre>
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<p>Quisque ornare libero id nibh imperdiet ultrices. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Nunc fringilla urna in mauris consequat, eget lobortis elit sodales. Curabitur ipsum ligula, tincidunt eu venenatis quis, ullamcorper et nunc. Sed in hendrerit felis, eu fermentum mauris. In varius non urna at ullamcorper. Duis at arcu nibh. Vivamus et elementum purus. Nulla a tellus dapibus, tristique libero ut, porta odio. Nulla luctus aliquet tempus. Pellentesque ultrices finibus turpis, non vestibulum metus.</p>

Answer 1

Try the following css rules instead:
input[type='checkbox'], input[type='radio'] {
display: none !important;
visibility: hidden !important;
}