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100vh problem with iOS Safari

Maciej Trzciński 🌱🇵🇱 on December 13, 2020

The web content it's outside the viewport although we used 100vh (the red opacity box with 100vh text). .section { height: 100vh; // bad ...

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iway1 • Oct 18 '22

thanks this is pretty easy. It's important to mention you'll want to run this on window resize events if you intend to allow your users to resize

Fabio Giolito • Dec 14 '20

My approach is to disable the show/hide of the safari bars by preventing the body from scrolling. That way the content area height is constant.

<body>
    <div class="app">...</div>
</body>

body {
    height: 100vh;
    height: -webkit-fill-available;
    overflow: hidden;
}
.app {
    height: 100%;
    overflow: auto;
}

Maciej Trzciński 🌱🇵🇱 • Dec 15 '20

Hi, It will work, but you have to remember about for example scrollTo and #anchors in this solution.

david • Mar 14 '21 • Edited

nice! thanks for posting, this is the most effective solve I've found.

something thing I noticed after implementing this solution is that it can trigger the fabled 'jumpy scroll', referenced in the stack overflow post I'm sure we all landed on before finding this post. stackoverflow.com/questions/371122...

as a workaround I created two css variables, one for the fixed "starting" height, and another "dynamic" height that is only used for the shopping cart, mobile menu and other fixed-position elements that require 100% screen height.

pasted below in case someone else runs into the same issue!

// set up css var for starting app height. this will not change on resize so we can avoid the jumpy scroll issue const appHeight = () => { const doc = document.documentElement; doc.style.setProperty('--app-height', ${window.innerHeight/10}rem) }; window.addEventListener('orientationchange', appHeight); appHeight();

// set up css var for dynamic app height. this is just for the cart and mobile menu since they need to be fixed to size at all times.

const dynamicAppHeight = () => {
const doc = document.documentElement;
doc.style.setProperty('--dynamic-app-height', ${window.innerHeight/10}rem)
};
window.addEventListener('resize', dynamicAppHeight);
dynamicAppHeight();

jochenthomas • Jan 20 '21

Hi,
see: dev.to/admitkard/mobile-issue-with...
Same issue, but again - on current Safari it is NOT working! Even on Android devices, I see the same issue.

So is there a working solution if the address bar moves away (no resize/switch to landscape etc.).