arpansinghchauhan

I have checked this behavior on w3schools site http://www.w3schools.com/tags/tryit.asp?filename=tryhtml_fieldset

Can you please tell me why fieldset border is disappearing in landscape mode ?

Device used: iPhone 6 Plus.

I am working on the responsive part of my website, and in iPhone 6 plus, fieldset borders are missing(both portrait and landscape mode).

I checked fieldset elements on other responsive site(w3schools) on iPhone 6 plus, In portrait mode i can see border but it disappears in landscape mode.

For all the devices (iPhone and iPad): fieldset border disappear, as soon as I zoom in.

If I remove legend, border will appear again (in all the cases).

Please provide some pointers