how to change css?

Question

css

https://jsfiddle.net/fj70gx8q/3/ how to make the blocks do not change their size when the window is reduced?

Answer 1

gradient

Answer 2

tyts following the example, make two triangles, well, style the block as you need
UPD , probably still a better gradient as the commentators advised you above))

Answer 3

.container {
  min-width: 200px; /* example */
}

Answer 4

Set blocks to a fixed width (not in%, but in px, for example).
https://jsfiddle.net/fj70gx8q/5/

Answer 5

Set them to a fixed size, not as a percentage of the window size.

Answer 6

https://jsfiddle.net/fj70gx8q/7/ so for example