[need help] text break

I will explain the trouble with image.
please see [url=http://postimg.org/image/zbr2jvmtz/][img]http://s7.postimg.org/zbr2jvmtz/blogging_theme.jpg[/img][/url]
or http://s7.postimg.org/slalafzob/blogging_theme.jpg

how to fix it? I’m newbie. I dont know what problem script. are that in single.php, function.php, or another?

please guide me
thank you