1st step

From the internet i can see a lot of layout for the blogger.Just Google's it and u can choose what type of layout u want to use.The more attractive and more creativity of the blog u pick up the more people were come to see your blog.Just register with www.blogger.com and u can make your own blog using your Email like yahoo.com, hotmail.com,Gmail.com and any other related email that u have.u can start blooging after that and change your layout with your own creativity.re-arrange the blog change color change background and so on.Simply go login your email and click the dashboard and u will directly to the page ADD AND ARRANGE PAGE ELEMENT u can put your adsense there logo,video music and post your post,change your color style and edit your html.
The html is a code that u can simply use the java code to change the color of text,color of background,enlarge the page,like we can see the blog that appear its just 692px..u can edit this and change to 900 to make your blog looking more nicer.
eg.

/* layout
----------------------------------------------- */
#outer-wrapper {
margin: 0 auto;
width: 692px; <---- change this one to make it larger
text-align: $startSide;
font: $bodyFont;
}