Borders
First you need to cut 2 - 2" squares of the med.
Cut them across from corner to corner to make 2 triangles
It is easier to show you than to explain so look at the 1st pic and you can see how I laid the med triangle on the dk strip
The long side should be straigh up and down and make sure you sew on the angled side. I messed this up several times before I got it right and even tho I did the first one right I kept doing it wrong on the next ones. So check the placement well before you sew!
I trimmed at the top to get a straight edge. Mine kept having bowed edges and it was distracting so I straightened it.
I trimmed the bottom by laying the ruler on the triangle. A line of your ruler needs to lay on the tip of the triangle. Then measure down 1 1/4" from the tip and make sure your ruler is laying straight. I looked at the bottom edge of the ruler and one line on the ruler should be touching the end of the triangle seam on one side and the other side should be touching the line on the ruler there. The bottom of the triangle should show 2 inches between those lines.
After you do the first one then add the second strip