1. ensure there is a clear layer at the bottom of your layers palette and that you can see the checker pattern. It pays to have the clear layer at the bottom on some versions of photoshop.
2. use save for web then choose png with transparency. Simple.
3. use png crush to reduce the size of your photoshop exported pngs as photoshop still makes a poor job of sizes.
2. use save for web then choose png with transparency. Simple.
3. use png crush to reduce the size of your photoshop exported pngs as photoshop still makes a poor job of sizes.