well, I find the way to costumize the width of the article, but still would be nice to know if the article headline would be possible to change the color?

Hello Anrea,

you can do it by manually customize the css code of your site, there's no possibility to add css custom code only for the blog page but you can add the css for all the pages of your websites in a way that it affects only the blog elements.

For adding css to all the pages  you can go to step 1 -> expert tab -> insert the CSS in the HEAD section.

For example you can add this code in order to have the title of the blog red: 

<style type="text/css">

div#imBlogContent h2 {color:#ff0000}

</style>

You need to have some programming skills to customize the elements as you wish in this way, hope this helps