1. How to increase the space (1) between the two posts columns? And the space (2) between the right posts column and the side bar? https://imgur.com/D83UB2I
2. How to shorten border bottom (of the right side bar’s widgets) length, so it will be a space between the border bottom of the widget and the border left of the side bar.
Here’s how it looks on my website: https://imgur.com/NNK0lF7 and here’s how I want it to look like: https://imgur.com/0EtThiM