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Just getting my feet wet in lightning. I am trying to render the following lightning app in Salesforce classic. However the form displayed is returned only in basic HTML (without the default lightning styling). Is it required that lightning be enabled to render lightning components? I would think not since the lightning components can be rendered on visualforce pages. Do I need to include any additional markup to render correctly? appName.app myfirstComponent.cmp: Basic Input Text
Advanced Input Text
Live Input Text
FirstName: {! v.firstName }
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Top keywords - lightning style