Conditional background color

Look here for the "Field required" code https://www.w3schools.com/php/php_form_required.asp

Then look here for the cell conditional formatting https://xlinesoft.com/blog/2011/01/03/tutorial_conditional_formatting/

Hi Mark, thanks for the reply.
I would like to know the required fields going into the form. I think your W3 example shows required fields on form submission?
The 'Conditional field styles' I think applies to lists only and not to add/edit pages?
I'm very new (still on trial) so I could be totally wrong about this.
Thanks again

Bill,

just wanted to say that if you cannot figure this out, post your project to the Demo Account and contact support directly. We will find a way to make it happen.

Thank you 'admin', I will certainly do that.

Sergey provided this very slick solution, thanks Sergey.

Proceed to Style Editor -> Custom CSS and paste the following code there:

.bs-inlinerequired input {
background: #ffbbbb !important;
}