Ext GWT requires the following doctype:
When defining icon styles, it is recommended to add !important to any style to ensure the style is applied to you element. A typical definition looks like this:
You can disable all generic related compiler errors in Eclipse. Select your project in the Package Explorer, right-click, and choose Properties to bring up your project's preferences. Select and change the drop downs to match the following screenshot. You may need to check the Enable project specific settings.
The same steps can be applied to Potentional programming problems / Serializable class without serialVersionUID.
2 tools we use daily when looking into UI issues are Firebug for Firefox, and IE Toolbar for IE. With both tools, it is possible to inspect the DOM and see what is happening with your page. You can quickly see what the markup looks like and what styles are applied.
