How to center main menu text

Hello,

Can you please tell me how to center the content of the main menu?
I want it to look like this: http://s17.postimg.org/3lzwu4srx/centered.jpg.

And also how to I remove the post date? And align the text to the left. You can see how it is now right here: http://
And I want it to look like this: http://s13.postimg.org/wj7g5mq9j/postdate.jpg

My website: http://www.ciclotrasee.ro

Thank you.

Hi!

To center menu you need to add the code:

#mainmenu li:first-child {
		margin-left: 115px;
	}

But if you add more items to the menu you will need to change the code again.
Could you clarify the issue with date on your website?