monstroplante

I really want to know how to do it as well.
if someone found it,
can he share, i looked everywhere in the code and couldn’t find how to remove those 30px :/

Wait, ok i found where it was…
its still very annoying for pictures in posts, cause it added big white zone on the right.

Anyway, to fix it : look for those, and replace by this :
#masthead hgroup {
width: 600px; /* 780 */
}
#content {
width: 600px; /* 780 */
}
#custom-header-image {
margin: 30px auto 30px auto;
z-index: 100;
position: relative;
width: 600px; /* 788 */
}
.entry-content img {
max-width: 560px; /* 780 */
}
.sidebars {
width: 600px; /* 780 */
margin-top: 30px;
}