Location box has become right-aligned

I was aiming for control-X when in the location bar to cut a bit of text out, and I must have hit some other key combination. Somehow I managed to get the URL in the location box to become right-aligned instead of left-aligned. I have a screenshot of if, but there is no option to upload a file with this report. Basically when I type in the location box, where you normally type a web address, instead of starting at the left end of the box, it starts at the right end and fills out towards the left, but still in normal left-to-right text. However if you start to type something like define: the colon jumps before and it becomes :define until you type the next character. Looks a bit weird! TIA Brian