CSS: Style external links

Question

I want to style all external links in my website (Wordpress). I\'m trying with:

.post p a[href^=\"http://\"]:after

But Wordpress put the entire

Answer 1

I combined @superlogical + @Shaz to make something for my Foundation WP theme...

a[href^="http://"]:not([href*="maggew.com"]):after {
     content: " " url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAAVklEQVR4Xn3PgQkAMQhDUXfqTu7kTtkpd5RA8AInfArtQ2iRXFWT2QedAfttj2FsPIOE1eCOlEuoWWjgzYaB/IkeGOrxXhqB+uA9Bfcm0lAZuh+YIeAD+cAqSz4kCMUAAAAASUVORK5CYII=);    
}

You can use this HTML snippet to test on your site:

External

---

This is what I used for a custom image (like a favicon)

a[href^="http://"]:not([href*="magew.com"]):after {
     content: " " url('/wp-content/uploads/2014/03/favicon.png');    
}