Header with full width background image in tag archive page

Thank you Mike,
as it is not possible via Enfold interface, I did it with a bit of HTML and CSS
It is not portable code, easy to reuse, but it works.
I hope that Enfold will add this functionality in a future release

<div class=”jmb-full-width-image”></div>
<p class=”jmb-full-width-image-paragraph1″>Our Gourmand</p>
<p class=”jmb-full-width-image-paragraph2″>Perfumes</p>

.jmb-full-width-image-paragraph1 {
margin-top: -165px;
margin-bottom: 204px;
color: #f2f9bd;
padding-left: 10px;
font-size: calc(19px + 2vw);
}
.jmb-full-width-image-paragraph2 {
margin-top: -145px;
margin-bottom: 81px;
color: #f2f9bd;
padding-left: 10px;
font-size: calc(19px + 2vw);
}
.jmb-full-width-image {
background: url(/wp-content/uploads/gourmand-perfumes1.jpg) no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
width: 100vw;
height: 400px;
margin-top: -36px;
margin-left: -50px;
padding: 0;
outline: none;
}

The interesting point is
width: 100vw;
that set the width of the image at 100% of the viewport

At the moment it works correctly in the staging site where I had to modify the width in Enfold settings => General Layout => Maximum Container width from 1310px to 100%, in the production site I did not do this modification yet, because I am afraid that it could break something.

Setting Maximum Container width to 100% can have some weird effect? From the staging site it does not seem so

Thank you
Mauro