Template:MainPageWelcomeCSS.css
From KSI Wiki
.wiki-banner-wrapper {
border: 2px solid #f79200; width: 100%; max-width: 100%; margin: 0 auto; overflow: hidden; padding: 0; box-sizing: border-box;
}
.wiki-banner-image img {
width: 100%; height: auto; display: block;
}