Mobile Lightbox Submit Button - Remove Rounded Corners

Site URL: https://www.meadowweddingfilms.com/

Hi All

iOS creating its own styling by rounding the corner of my lightbox form submit button.

I've looked at a couple other forum posts but no luck with their solutions, or the replies are unclear on where the coding should go.

Please can anyone help on the code to stop this re-styling. 

I just want the button to have 0 radius like the desktop site.

Thanks

Add to Home > Design > Custom CSS

button.lightbox-handle {
    border-radius: 0 !important;
}

Hi @tuanphan

Thanks for this - unfortunately, it still doesn't seem to be working.

On my home page, if you scroll down to the 'Request Pricing Guide' section.
If you click that button to open the lightbox form on iphone, the submit button still has rounded corners.

Thanks