This pull request fixes the issue when resizing the window smaller than 1170 px, right now there is no padding/margin on sides and it looks broken.

Signed-off-by: Unknwon <joe2010xtmf@163.com>

Removed trailing whitespaces with

```sh
for file in `grep -r " $" * | cut -d : -f 1 | sort | uniq | grep -v " "`; do sed -i 's/[ \t]*$//' $file; done
```

and some handwork.