Change the size, police, and color of the blog title?

Thank you for your answer Daniel !
I’m really not an expert, before making a mistake you could confirm me that it is the good part of Site title:

#site-title {
width:940px;
margin:0 auto;
font-size:36px;
line-height:100px;
text-transform:none;
}

#site-title a {
color:#151515;
text-decoration:none;

For change the color it’s good this line :
color:#151515;

I must be to change the value 151515 by that of my choice to change the text color?

If i understand this line:
font-size: 36px
for change the size of the text (I just have to change the value 36px to change the size)?

but for change the police I do not see witch line is it?
I would put the police:
Trixie is this possible?

Sorry to ask all these questions, but as I told you I am far from being an expert and I thank you in advance for the time you spend on me.
Thank you so much.

Again thank you so much for your response to the police I wanted to change a nome “Trixie” if this is possible?

I’m sorry I misspoke sorry, it is possible to change the script of the title example :
as the title is written in Arial Black I would change it to trixie.
Thank you for your advice I got to change the color and size thanks to you.

Thank you so much for the response very useful, but I have a little problem I can not find the line for only changing the title script “Minimatic” in your example, I do not want change other things only the title.
the one paragraph that I found is:
@font-face {
font-family: ‘Vegur’;
src: url(‘fonts/vegur-light.eot’);
src: url(‘fonts/vegur-light.eot?#iefix’) format(’embedded-opentype’),
url(‘fonts/vegur-light.woff’) format(‘woff’),
url(‘fonts/vegur-light.ttf’) format(‘truetype’),
url(‘fonts/vegur-light.otf’) format(‘opentype’),
url(‘fonts/vegur-light.svg#VegurLight’) format(‘svg’);
font-weight: normal;
font-style: normal;
}

@font-face {
font-family: ‘Vegur’;
src: url(‘fonts/vegur-bold.eot’);
src: url(‘fonts/vegur-bold.eot?#iefix’) format(’embedded-opentype’),
url(‘fonts/vegur-bold.woff’) format(‘woff’),
url(‘fonts/vegur-bold.ttf’) format(‘truetype’),
url(‘fonts/vegur-bold.otf’) format(‘opentype’),
url(‘fonts/vegur-bold.svg#VegurBold’) format(‘svg’);
font-weight: bold;
font-style: normal;

I deduced that the police “Vegur” but is it for all the page or just the title?

Hello,
Thank you so much for your answer, I did find the line:

body {
background:#FFF;
color:#000;
font-family:”Vegur”, sans-serif;
font-size:16px;
line-height:18px;

but my problem persists when I change nothing happens, I tried with other names that Trixie and nothing changes the title is still Vegur.
As can I do?
Thank you for you help