Merge pull request #4 from tomohiro-n/UIdesign

fix #52 tweaked the font size and bit of margin settings to make it look...
ref #44 tag part in the right pane
Merge branch 'master' of github.com:tomohiro-n/tofu

Conflicts:
	public/index.html
	public/sass/screen.scss
	public/stylesheets/screen.css
ref #44 put tag with the selected word in the right place