To create horizontal lines on the html page is used to <hr> horizontal rules tag.
This tag supports all major browsers (IE, Chrome, Firefox, Opera, Safari, Android, Mozilla...)
Horizontal line in html:
<hr>
result:
<hr width="50%">
result:
<hr width="70%">
result:
<hr width="90%">
result:
<hr size="4">
result:
<hr size="8">
result:
<hr size="12">
result:
<hr align="left">
result:
<hr align="center">
result:
<hr align="right">
result:
<hr color="green">
result:
<hr color="red">
result:
<hr color="blue">
result: