Re: html5 boilerplate – need help — stuck with lot of CSS issues.

[unasAquila]

You need to change it in your @media query.

@media only screen and (min-width: 1140px) {

/* ===============
Maximal Width
=============== */

.wrapper {
width: 100%; /* 1140px – 10% for margins */
margin: 0 auto;
}
}