While every McKinsey deck should be unique, there are common elements that McKinsey decks and pages share. By including these components and following the advice in the post on client-ready McKinsey decks, you can make pages and presentations in the McKinsey style.
Two Options for Page Titles (aka "leads", "headlines")A good title or "lead" will concisely and effectively a) capture the audience's attention, b) explain why the page is important, and c) show how the page contributes to the storyline.
Typically, the lead is no more than two lines of relatively larger font. An alternative format is to separate the title (in larger font) and headline (in smaller font). The format should be consistent throughout the deck and, ideally, for the entire engagement.
Content and Exhibits that support the leads
Key takeaways or the "So What" of the page
If you can't come up with a compelling "So What" for your page, you might want to consider moving it to the Appendix as a back-up page.