How can I change the thickness of my tag

Question

I want to change the thickness of my horizontal rule (

---

)in CSS. I know it can be done in HTML like so -

Answer 1

Here's a solution for a 1 pixel black line with no border or margin

hr {background-color:black; border:none; height:1px; margin:0px;}

• Tested in Google Chrome

I thought I would add this because the other answers didn't include: margin:0px;.

• Demo

hr {background-color:black; border:none; height:1px; margin:0px;}

 ↑ container ↑ 
 
 
 ↓ hr ↓ 

 ↑ hr ↑ 
 
 
 ↓ container ↓