This is ancient, but only for those who are still wondering about the last part of the question:
We assume that the Kendo classes will replace our invoice and navigation markup, but what about our grid? Does the Kendo UI have an embedded CSS?
The answer to this question is NO. Kendo has a data grid widget, but there is no grid layout at this point in time. But they continue to add to it. Their material is compatible with the Bootstrap grid, but if you want to use the Bootstrap grid inside the Kendo window widget, you need to customize the fact that they use different box size models:
*, :before, :after { -webkit-box-sizing: content-box; -moz-box-sizing: content-box; box-sizing: content-box; }
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