My b2evolution Version: 1.10.x

hello everyone, i m a newbie,
wht i need is ..
i had changed my blog's page similar to my home page rather than b2evolution;s default skin, by editing _main.php & stlye.css
i succeded, very happy.

but wht i coudnt make is say :

the blog page is listed with titles say
******************
First Post
......
Second Post
......
Third Post
.....
*****************
i want the first word of every title to display in a particular color/font , and rest with another one.

mmmm i think you wil guide me atleast where to edit
so thanks,