Make plus symbol in CSS [duplicate]

Answer 1

You could do this by using the content property of CSS:

.plus {
  height: 24px;
  width: 24px;
  display: inline-block;
  background-color: black;
  color: white;
  font-size: 24px;
  line-height: 24px;
  text-align: center;
}

.plus::before {
  content: "+";
}

Here's a Fiddle showing the above code.