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 ...

Cascading style sheets (CSS) are browser instructions for styling HTML elements ... let you add... How to Assign a Hyperlink in InDesign. A hyperlink is a Web page element, such as a line ...

jsFiddle is the perfect solution; it provides a custom environment (based on user selections) to test (or fiddle with) your JavaScript, HTML, and CSS code ... page includes a line of buttons ...