Is it possible to change the banner image easily in the CSS without having to update every HTML page? I don't want the image source to be directly on the HTML pages. How can this be achieved? Additionally, there are already two references in the CSS:
}
.masthead .banner {
box-shadow: 0px 0px 30px rgba(0,0,0,.5);
border-bottom: 1px solid #fff;
}
.masthead .banner img {
height: auto !important;
width: auto !important;
max-width: 100%;
display: block;
}