All About the HR Lines ;-)...
Here is How <hr> Lines Work :-)... First the basic <hr>
Second, lets add some color, <hr color="#ff0000"> this can be color name or HEX value as shown...
Third, You can add a "size" to these lines to make the Lines thicker...
<hr color="blue" size="7">
Forth, You can also determine the width...
<hr size="4" width="150" color="#FF9C42">
Lastly, the align tag, left, right or center...
<hr size="6" width="200" color="#A2CD5A" align="right">