Opacity Alternate Content

Hey dupbertrand,

Please refer to this post – http://kriesi.at/documentation/enfold/adding-a-widget-area-to-the-header/ and add widget area to your header.

Please try adding this code to the Quick CSS section under Enfold > General Styling or to your child themes style.css file:

.main_color.container_wrap {
    background: transparent;
}
#main, .avia-msie-8 .av_header_sticky_disabled#header {
    background-color: rgba(255,255,255,0.5);
}

Best regards,
Yigit