where to change the background color for a customized widget?

[Alexwang]

HELLO, can anybody tell me where to change the background color for a customized widget I built? Thanks, 

[RobertScheitlin__GISP]

Alex,

   that is a very subjective question... Is your widget using a tab container? What theme are you using? Probably would be better to attach a screenshot pointing to exactly what you are trying to change color for.

[Alexwang · Accepted solution]

Thanks Robert for your response. I have attached a screen shot. I used Lauchpad theme and I want to change the default white background color to other color. 

[RobertScheitlin__GISP]

Alex,

  Add this css rule to your [install dir]\server\apps\[app#]\themes\LaunchpadTheme\common.css

.jimu-panel.jimu-launchpad-panel {
  background-color: blue;
}‍‍‍

[Alexwang]

Worked, always! Thanks, Robert.