#1MinuteTip Here is a package from Salesforce Labs that provides a suite to components to enable you to create a mockup of your page layouts in Salesforce itself before actually building those pages. It is like “whiteboarding” your idea and design, brainstorming and sharing it with your stakeholders and getting their approval.
Take a look at the following video (4 minutes approx.). It can be quite useful.
And here is the link to the package on AppExchange