change webView Font size with Setting Bundle ! [iPhone SDK] -

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I want to replace my UIWebView with setting the bundle. What is the property for webview font?

I know my code is wrong! 

  if ([default boolForKey: @ "big_font"]) {myWeb.font = [UIFont fontWithName: myGhazal Size: 32.0f]; } Else {myWeb.font = [UIFont fontWithName: myGhazal Size: 18.0F]; }

Refer to a CSS style sheet in your HTML document or style information

Regards.


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