box-shadow blur causes gap around fixed header element

Input design method

How to create a button like in the example

Theming system with SASS
eventListener on click
Css animation issue

Which course should I take
...
The box model does not fully apply to items participating in an inline formatting context.
The box model does not fully apply to items participating in an inline formatting context. In a horizontal writing mode line, horizontal padding, borders and margin will be applied to the element and push text away left and right. However, margins above and below the element will not be applied. Vertical padding and borders will be applied but may overlap content above and below as, in the inline formatting context, the line boxes will not be pushed apart by padding and borders
The box model does not fully apply to items participating in an inline formatting context. In a horizontal writing mode line, horizontal padding, borders and margin will be applied to the element and push text away left and right. However, margins above and below the element will not be applied. Vertical padding and borders will be applied but may overlap content above and below as, in the inline formatting context, the line boxes will not be pushed apart by padding and borders
@keyframes steps difference
to and from mean something different compared to the percentages?
```css
@keyframes xyz {
from {
transform: translateX(0%);...Not Working?

Grid rows automatically created when no template rows defined?
grid container and haven't defined any grid-template-rows however it's automatically created some (3) to hold the content.
1. Is this normal behavior?
2. Are these automatic rows something you can do things with such as make the elements share the same grid cell etc?
...overflow-x: hidden; overflow-x: clip !important; overflow-x: hidden !important;
outline on focus-visible is not even?

problem with input type number
why does margin-top auto only work if parent is a flex container
margin-top: auto; on a child (in this case nav) doesn't work unless the parent is a flex container (in this case .site-container), i just know it works and i'd like to understand a little more. I'd appreciate any help, thanks in advance.
https://codepen.io/deerCabin/pen/OJeLPYW...fix navbar at the bottom of the screen while leaving space so it doesn't cover content
position: fixed solves this, but does not leave room at the bottom of the page, meaning that the navbar cuts off the bottom part of the content. The only solution I can seem to find for this is simply adding padding, but this seems like a hack, and I may need a different amount of padding on different devices. I could detect the heig...
How do I grab the height of an element in a different .scss module and React component?

Why does this background image appear as 180px wide?