HTML doesn't offer as clean a solution for vertical lines as it does for horizontal lines -- a vertical equivalent to the Set your image up within your text and add a "style" attribute tag.

Include a CSS style parameter in your HR tag to modify the default color to black. Use an HTML or text editor to open the HTML page in which you want the line to appear. Type the following code ...

This list of Color Picker freeware tools and free online web services will help you identify HTML color HEX, RGD, etc codes from images, websites, etc. A free color picker tool that lets you get ...