I've made a fairly simple "Coming soon" page for a client here and I have a very strange problem. Normally I'm the "go-to" CSS specialist of everyone I personally know, but on this one I am out of resources/ideas trying to figure it out.
On iPhones, using the default browser (Safari), the email input, which has a type="text", just like the name field, displays a white border instead of a blue one. The client reported the problem (she has an iPhone6 - not sure if S or not) and I tested it myself with on an ancient piece (4s) we just keep around the office for testing. For all I know, border-color is a CSS1 property, same as border-width and border-style. They are all applied explicitly so, basically no browser in the world should have a problem rendering it.
I haven't been able to reproduce the issue in any emulator or online snippet tool, so I don't see any point in posting code here. I'm assuming someone with proper iOS/Safari debugging tools/environment might be able to inspect the element and see why the CSS doesn't apply. I also tested the CSS for errors. The one I applied (child theme) is bug free. The parent theme CSS reports some issues but they're mostly vendor prefixes. But it's a good, well designed and well coded theme: Enfold by Kriesi.
EDIT: On further testing I just discovered the color property is also set to white too, when it should be the same blue: #255AA8.
Any idea on how I could debug this (on a Windows 10 machine) is also welcome.
Thank you for your time.
I found the problem... in the themes's .js.
Apparently, it detects if on mobile (somehow they do it properly - as the script doesn't fire in emulators) and if the field requires an email address, the type attribute is changed from text to email via js, so the email keyboard layout pops up when user inputs their email.
Adding
#top div .av-light-form input[type="email"] {
}
to my list of selectors did the job.