How to make 3 vertical dots using CSS?

Question

I want to have 3 dots on my page to, for example, toggle the display of a contextual menu. How can I achieve this using CSS?

Answer 1

1. With fontawesome.css

2. With Glyphicons

3. With css

   .textSpan:after {
    content: '\2807';
    font-size: 3em;
    color: #2e2e2e
   }