Are You Making These CSS Height Mistakes?

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Published 2023-03-07
FREE CSS Selector Cheat Sheet: webdevsimplified.com/specificity-cheat-sheet.html

Heights in CSS are a pain to deal with. They almost never work as you expect and they always seem to be larger or smaller than you want them to be. In this video I will show you why things like height: 100% do not work like you expect and what you can do to make them work.


📚 Materials/References:

FREE CSS Selector Cheat Sheet: webdevsimplified.com/specificity-cheat-sheet.html
Mobile Phone Dev Tools Video:    • Learn JavaScript Touch Events In 17 M...  
Viewport Units Video:    • Learn Every CSS Viewport Unit In 10 M...  
Viewport Units Article: blog.webdevsimplified.com/2022-08/css-viewport-uni…
Flexbox Video:    • Learn Flexbox in 15 Minutes  
Flexbox Article: blog.webdevsimplified.com/2021-11/flexbox


🌎 Find Me Here:

My Blog: blog.webdevsimplified.com/
My Courses: courses.webdevsimplified.com/
Patreon: www.patreon.com/WebDevSimplified
Twitter: twitter.com/DevSimplified
Discord: discord.gg/7StTjnR
GitHub: github.com/WebDevSimplified
CodePen: codepen.io/WebDevSimplified


⏱️ Timestamps:

00:00 - Introduction
00:31 - Example 1 - Fill Full Page
05:20 - Example 2 - Fill Remaining Space


#CSSHeight #WDS #CSS

All Comments (21)
  • @d1ge
    Not gonna lie, height in CSS is cursed.
  • @lemon_maho
    the flex grow trick thoughhhh omggg, you're a legend, I've always found ways around the height but this one never occured to me, big thanks.
  • @karis7539
    you can set height: 100% for body and html, it is widely supported and basically works as a dvh
  • Thank you so much for clarifying these concepts. This really helps!
  • @Monika-tb1xg
    That is exactly what I needed to know! Thank you so much:)
  • @OneAndOnlyMe
    Those CSS cheat sheets are really useful, thanks!
  • @MB-zj3er
    dvh was new to me. Thank you very much for this video! You saved me some JS on page sizing!
  • @gosnooky
    This pain with heights in CSS is related to how web pages in general are vertical scrolling by default. In any other application UI framework, such as mobile (Native iOS, Android, RN, Flutter, et al), or desktop (like FX, Qt or Swing), the base behaviour takes into account the full viewport as defined by the device (or window dimensions), and scrolling is opt-in on a per element/component/view basis. I ran into this issue whilst building out an Electron application where I wanted to emulate the desktop experience by making the main DIV a viewport height of 100%, and adding in components that had internal scrolling. It was very difficult to define, say, a view that would have scrolling content on a non-scrolling page that would take up the remaining space in its respective column. It was a YUUUGE pain in the arse, and I never did iron out all the CSS bugs. Mind you, I built this using flex box when it was sort of new. I'd imagine if I needed to do something similar in the future, CSS grid would be more helpful in this regard.
  • @bobdinitto
    Flex-grow is really quite a useful little item but generally not the first thing one thinks of in these situations. Thanks for the tip!
  • @pointzero9
    I appreciate you making this video... Thanks
  • @GaneshSingh1
    Thanks 😊 bro 🙏, I learned something new today
  • @BMikel
    This is what I often lack. thank you for sharing
  • @Aweklin
    This solves my lingering problem. Thanks Kyle
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