There is :first-letter and :first-line, but no :first-word (MDN Search). Just wrap your first word in an element. Fiddle exmaple
<div class="logoS"><span id="first-word">Title</span> Of The Page</div>
.logoS{
padding: 0px;
float: left;
font-family: 'Open Sans', Helvetica, Arial, sans-serif;
color: blue;
border:solid 1px black;
font-weight: bold;
font-size: 22px;
}
#first-word {
margin-right: 20px;
color: red;
}
Or you can use javascript (here's an example), but if you look at the code, all he does is wrap the first word in a span and add a class.