Icon's position is not fixed

I want to fix my twitter icon under my div but…when div element’s size increases icon moves with the element size

here’s my code: https://codepen.io/buzz_lightyear/pen/gXLLpo

yes but that doesn’t solve my moving icon problem …the twitter icon still moves up and down with the size of element

icon is fixed with min-height…ok but what about the div height which increases with element …it’s like a glitch…how do i solve this?