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<!DOCTYPE html> <html> <head> <style> h2 { outline-style: double; } div.a { outline-style: double; } div.b { border: 1px solid red; outline-style: double; } </style> </head> <body> <h1>The outline-style Property</h1> <h2>A Heading with a double outline</h2> <div class="a">A div element with a double outline.</div> <br> <div class="b">Notice that the outline is outside of any border.</div> </body> </html>
