How can I replace text with CSS?

Question

How can I replace text with CSS using a method like this:

.pvw-title img[src*=\"IKON.img\"] { visibility:hidden; }

Instead of ( img

Answer 1

Based on mikemaccana’s answer, this worked for me

button {
  position: absolute;
  visibility: hidden;
}

button:before {
  content: "goodbye";
  visibility: visible;
}

§ Absolute positioning

an element that is positioned absolutely is taken out of the flow and thus takes up no space when placing other elements.