Im trying to adjust the previous sibling when the first sibling has a hover state. I have put together an example here. Im trying to get it to stay at 100% width of the viewport and adjust the div you are hovered over to be 60% and the other child to be 40%.
https://jsbin.com/xucipevuzi/edit?html,css,output
This gets the next sibling but i cant find a good way to get the previous when the first one has a hover.
&:hover
width 60%
+ div
width 40%