css: use less blurry icon for external link

Your mileage may vary, but for me the old icon looks blurry. The new
one is character 0xf08e from OTF font awsome in size 10.
The icon color is black, gray level is adjusted via opacity.

Signed-off-by: Christian Hesse <mail@eworm.de>
这个提交包含在:
Christian Hesse 2016-02-23 10:47:25 +01:00 提交者 Jason A. Donenfeld
父节点 1892cd9a60
当前提交 a0d22c391e

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@ -86,7 +86,8 @@ div#cgit table.tabs td a.active {
}
div#cgit table.tabs a[href^="http://"]:after, div#cgit table.tabs a[href^="https://"]:after {
content: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAQAAAAnOwc2AAAAAnNCSVQICFXsRgQAAAAJcEhZcwAAABQAAAAUAVyMgXwAAAAZdEVYdFNvZnR3YXJlAHd3dy5pbmtzY2FwZS5vcmeb7jwaAAAAeklEQVQI12NoYCu3q3ABwXL98vTy/0D4jaF8XXldRRoYejAwlu8BCTOU72SAg4q08j/le0GC22BC5anlfyrSGBiBGCZYllz+pywLJg8WLOMtf1GeCjRgI5IgSBhMboUIHq40r1CCQrfyDRAV6uXdZTMhsKKlVIIBFwAAVeg4KFYK95cAAAAASUVORK5CYII=);
content: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAQAAAAnOwc2AAAAAmJLR0QA/4ePzL8AAAAJcEhZcwAACxMAAAsTAQCanBgAAAAHdElNRQfgAhcJDQY+gm2TAAAAHWlUWHRDb21tZW50AAAAAABDcmVhdGVkIHdpdGggR0lNUGQuZQcAAABbSURBVAhbY2BABs4MU4CwhYHBh2Erww4wrGFQZHjI8B8IgUIscJWyDHcggltQhI4zGDCcRwhChPggHIggP1QoAVmQkSETrGoHsiAEsACtBYN0oDAMbgU6EBcAAL2eHUt4XUU4AAAAAElFTkSuQmCC);
opacity: 0.5;
margin: 0 0 0 5px;
}