how to make text transparent with stroke in css

1h1 {
2   -webkit-text-stroke: 1px black;
3   color: white;
4   text-shadow:
5       3px 3px 0 #000,
6     -1px -1px 0 #000,  
7      1px -1px 0 #000,
8      -1px 1px 0 #000,
9       1px 1px 0 #000;
10}