1. Find a code that looks like this in your custom html (if you can’t find the same exact one, look for one that says posts or entries) I used one of trulychanel’s themes ^^

2. Change the width and height to your liking. I removed the height numbers because i just wanted to change the width.

3. We have to change the permalink of the photos so look for this code at the very bottom.

3. Change the width and height so they can match the size of the posts. where it says {PhotoURL-250} change the number to 500 or the width of the pictures.

Save + Close and you’re done! :D