Original Resolution: 893x336 How To Make Flexbox Children 100 Height Of Their Parent Using Css Geeksforgeeks When i make a full background image, on mobile, there is always a white space between <div>, this happens when as you can see at the bootply, i'm trying to include some filter to the image, so i have to make the separate css for how to make the background image fill up all the way vertically too?