Align text the bottom of a button

I was trying to align the label text of a button to the bottom of the button, or even better, be able to decide the percentage of the screen it will appear vertically , as the pan used for backgrounds.
But no matter that CSS command I use, none seem to work, even the ones that appear in this forum about this topic (that make reference to the old beta anyway)

label {
  align-items: flex-end;
}
1 Like

Hello friends! Taking advantage of the theme of this topic, do any of you know if it is possible to align the button label to the left?

I tested several combinations of these, but, to no avail: A Complete Guide to Flexbox | CSS-Tricks

label {
 justify-content: start;
}