The Nugget

On mobile devices, CSS 100vh may not actually be 100vh due to browser toolbar height not being taken into account. Avoid relying on 100vh and consider alternatives like 'fill-available' or JavaScript solutions when designing for mobile responsiveness.

Make it stick

📏 CSS 100vh on mobile may lack browser toolbar height consideration.
📱 Consider 'fill-available' or JavaScript to fix CSS 100vh issues on mobile.

100vh in CSS may not truly be 100% of the viewport height on mobile devices due to browser UI elements like toolbars.
Testing CSS 100vh on real devices is crucial to understand the actual rendering on different platforms.

Consider using 'fill-available' property in CSS to address the 100vh issue on mobile devices more accurately.
Implementing JavaScript solutions, like setting element heights dynamically, can also provide reliable mobile responsiveness.

HTML doctype declarations can interfere with 'fill-available' in CSS, requiring adjustments like removing the declaration for Chrome compatibility.
Issues like vertical padding on Safari can be resolved by wrapping content in additional div elements.
Using 'calc()' with 'fill-available' is limited; JavaScript can be utilized for more complex height calculations.

"To fix 100vh Issue on Mobile Devices? My first advice to you is to use vh as little as possible."
"Fixing the 100vh issue with fill-available is indeed straightforward but there are things that I personally experienced while working on this solution."
"Some developers like to define a CSS variable based on the window inner height and use that variable to style their desired elements."
"I mean it’s a CSS-only solution, guys! Use JavaScript only if you have to!"
"Adding vertical padding to the element that has its min-height (or height) to fill-available causes a problem on the Safari browser and the height won’t be correct."

This summary contains AI-generated information and may have important inaccuracies or omissions.