html: print linked element bold

Question

Hey I link between 2 pages with the following solution First page (first.html):

<a href="sample.html#abc">1</a>
<a href="sample.html#def">2</a> 
<a href="sample.html#ghi">3</a> 

Second page (sample.html):

<p id="abc">abc</p>
<p id="def">def</p>
<p id="ghi">ghi</p>

Question: How to style the element the user was linked to special with stock css? I know there are ways to do this with js but I really want this to be done with plain css and not javascript so yeah; help is appreciated :D

Example: User clicks link 3 (ghi) -> the text 'ghi' is red or underlined or whatever

Thanks already :p