I have an h3 with a height of 100%. Therefore the height is unknown. How can I center the text within itself? For the sake of the example, I have given the parent fixed dimensions but this is not the case. I have tried using vertical align but that doesn't work, I believe I may need to change the display to do that?
I don't want to center the text within its parent, I know various methods to do this. I want to know if it is possible to vertically center it within itself. The text needs to be 100% in both dimensions so that the link fills the parent div.
.unknowndimensions{
  height:300px;
  width:300px;
  }
.unknowndimensions h3{
  height:100%;
  width:100%;
  background:#f7f700;
  text-align:center;
  }<div class="unknowndimensions">
  <a href="#"><h3>Title</h3></a>
</div> 
    