The concept of margin in CSS is used to define a completely transparent outer space, that is, without background color for your elements. Therefore, it can be said that it is an essential property provided by CSS. In this chapter, you will learn about the various features available with the concept of margin.
Indexes in any database are essential in improving the performance of their data retrieval speed, and the same is true for MongoDB. By using indexes, performance in MongoDB queries becomes more efficient. In this chapter, you will learn about the different indexing techniques and their limitations.