Update css-recommendations.md (SharePoint#854)

Fixed broken inner links

Author: cslecours

docs/spfx/css-recommendations.md

@@ -216,8 +216,8 @@ Because the selector begins with the unique class name, specific to your compone
 
 ## Integrate Office UI Fabric
 
-By making your customizations look and behave like the standard functionality of SharePoint and Office 365 you will make it easier for the end-users to work with them. Office UI Fabric offers you a set of controls and styles for use in your customizations to seamlessly integrate with the existing user experience. For more information on using Office UI Fabric in the SharePoint Framework, read the [Office UI Fabric integration guide](web-parts/guidance/office-ui-fabric-integration).
+By making your customizations look and behave like the standard functionality of SharePoint and Office 365 you will make it easier for the end-users to work with them. Office UI Fabric offers you a set of controls and styles for use in your customizations to seamlessly integrate with the existing user experience. For more information on using Office UI Fabric in the SharePoint Framework, read the [Office UI Fabric integration guide](./web-parts/guidance/office-ui-fabric-integration.md).
 
 ## Use theme colors
 
-SharePoint allows users to choose the theme color for their sites. In your SharePoint Framework customizations you should follow the theme selected by the users to make your customization look like an integral part of the site rather than unnecessarily stand out. Because the theme is set by users in their site, you cannot tell upfront which colors your customization should use, but SharePoint Framework can dynamically load the currently active color scheme automatically for you. For more information about this capability read the [guide on using theme colors](./use-theme-colors-in-your-customizations).
+SharePoint allows users to choose the theme color for their sites. In your SharePoint Framework customizations you should follow the theme selected by the users to make your customization look like an integral part of the site rather than unnecessarily stand out. Because the theme is set by users in their site, you cannot tell upfront which colors your customization should use, but SharePoint Framework can dynamically load the currently active color scheme automatically for you. For more information about this capability read the [guide on using theme colors](./use-theme-colors-in-your-customizations.md).