How would you add this horizontal strip below the caption?

Question

css

Answer 1

For example:
1. Create a div below the text.
2. Indicate to him (parameters at your discretion). 3. Add as you wish. 4. Specify the desired width. 5. Profit! border-bottom: 2px solid #e3e3e3;

Answer 2

<hr style="width:50px;height:3px;background:red;text-align:center;">