I am having a few problems adding custom icons to my Mobile Website created with jQuery Mobile. 

Here is the code I have used: 

2. .ui-icon-custom {
3. background: url("images/buttonIcons/phone.png") no-repeat rgba(0, 0, 0, 0.4) !important;
4. }

The result seems to work - but the icon seems to be displayed below the button? 

Many Thanks, 

Joel