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body {position: relative}
body:after {content: ""; opacity: 0.75; top: 0; left: 0; bottom: 0; right: 0; position: absolute; z-index: -1; background: url("<!--{$link|escape:'html'}-->"); background-size: contain; background-attachment: fixed; background-repeat: no-repeat; background-position: left top}
#content, #mw-navigation , #mw-wrapper {background: rgba(255, 255, 255, 0.8)}
</style>
