Hi, I am trying to change an image size at the top of a template to size "Small", however, there is no scroll bar to move the screen down so the drop down box is not allowing me to click on "Small" because it is off the screen. I am using Google Chrome.
That is definitely an unfortunate place for the option you are looking for to be hiding. Since there isn't a way to change the position, the best way to get past this would be to change the zoom settings on the browser.
You can do this by holding CTRL and hitting "-" to make things smaller. Once the content is small enough to see all the options, use CTRL and "+" to get things back to 100% zoom.
Hope that gets you rolling again! I realize this isn't ideal, but since monitor displays can vary, sometimes content can be cut-off from fitting without the need for scrolling.
Let me know if it is still giving you a hard time and I'll take a second look.