1 <html xmlns=
"http://www.w3.org/1999/xhtml">
3 <title>'em' widths
</title>
4 <style type=
"text/css">
6 div { margin:
1em
0; height:
40px; width:
10em; background: navy; }
10 <p>There should be two identical bars below.
</p>
14 <svg preserveAspectRatio=
"none" height=
"40px" width=
"10em" viewBox=
"0 0 100 100" xmlns=
"http://www.w3.org/2000/svg">
15 <rect x=
"0" y=
"0" width=
"100" height=
"100" fill=
"navy"/>