How to remove gray background from a table?

Hi, that chat support box disappears randomly. Is that on purpose? I trying to follow-up on a code I received for removing the gray background from a table. This code didn't work for me.
th {
background: none !important;
}
.form-matrix-table tr:nth-child(2n) {
background: none !important;
}

Hello Wendy,

Thanks for contacting Jotform support. Please let us know on which form in your account you want to remove the gray background from the input table form field. You can let us know the form URL.

Hi Girish,

Thanks for responding. I need to change all the forms in the 2023 folder but I'll put an image of one of the forms here. https://form.jotform.com/Her_Justice/Diamond-RSVP. I tried putting in the CSS code but it didn't work.

Thanks for your help.

Wendy

Hello Wendy,

Thanks for getting back to us. Please inject the following CSS code into your form:

.form-matrix-values {

  border: 0px solid transparent !important;

  background: transparent !important;

}

Result:

Reach out again if you need any more help.

Hi Amin,
Thanks for sending the new code but it still doesn’t work.
Wendy
[cid:image001.png@01D95E64.10524D30]
...

Hello Wendy,

Thanks for getting back to us. I checked your form and I do not see the gray background. Check out the screenshot below to see my result:

It seems what you are referring is the layout you see in your Form Builder where the injected CSS code does not apply yet. Check out the screenshot below:

If you are seeing a different result on your end, kindly provide us a screenshot by following this guide.

Reach out again if you have any other questions.

I see now. Thanks so much for your help.
Wendy
...