Is there a neat way to achieve this interactive grid setup?

n00b center grid question.

Create Hacker Website Login Page in html
... center div š”
Intrinsic style, or least specificity
textarea in my browser (Safari) has a size of 155px by 26px which seems to be its intrinsic size (https://developer.mozilla.org/en-US/docs/Glossary/Intrinsic_Size) as there isn't even a UA style setting that size that I can see in the web inspector.
I would like to be able to set such an intrinsic size (and other styles) on an element so that it doesn't have either a size of zero (or just too tiny) or fills the whole screen/container -- like the textarea. And without the user/me later having to know/overpower some arbitrary specificity, a sort of !unimportant if you will. Am I making much sense here?...<a> wrapping an image extends below the image
Do all Hamburger menus need Js?
Making a cool loading screen
centralize with margin: auto
Using grid and on mobile overflows content
[Solved] The "transition" doesn't work
Why mobile devices get unwanted horizontal scroll and whitespace ?
Center flex child on the page, while ignoring other children
When I integrate the redux store into my React app, then I get this error.
How would you start this tricky section?
Using createElement() outside the function
css pseudo element ::before
Understanding the behavior of a container's margins and paddings when parent height is set to 100%
.this() and .catch()