Online Free Tutorials & Courses

Latest online learning materials with easy-to-understand examples in various subjects.

CSS id Selector

CSS id selector is used to select the HTML element using the ID attribute to apply a style to it. This id element is distinctive always inside the page, and hence it is preferred for selecting a distinct, unique HTML element.

    CSS Selectors

    Styling is an important concept that brings CSS to the top of web designing. Like other elements, selectors in CSS also help in selecting the styles in elements you want to put for designing your web pages. In this chapter, you will get to know about the concept of selectors in CSS.


      CSS Tutorial

      This CSS tutorial series describes various features of cascading style sheets to make web designing easier.

        Basic Syntax of CSS

        Every scripting or programming runs on a specific collection of rules. Likewise, CSS also has some particular set of rules that govern how users will have to implement the different CSS concepts. In this chapter, you will learn about CSS's […]

          Introduction to CSS

          CCSS is abbreviated as Cascading Style Sheets and is used for describing how HTML elements need to be displayed when they are represented in a web page format or other media. In this chapter, you will learn about the basics of what CSS is and how it can be helpful in styling markup documents.

            MongoDB - Limiting Query Result

            MongoDB allows you to specify the maximum number of documents to return using limit() method, and it is also possible to skip some documents from a MongoDB database by using skip() method. In this chapter, we will learn about both functions.

              MongoDB - Projection Queries

              Protection queries are a particular type of MongoDB queries where you can specify fields you want to get in the output. In this chapter, you will learn about MongoDB Projection Queries which can be used for an additional purpose.

                MongoDB - Query Operations

                A query in a database system is a command that is used for extracting data from a database and display it in a readable form. In this chapter, you will learn about the different ways of how queries can be made using MongoDB.

                  Bootstrap 4 - Custom Forms

                  In Bootstrap 4, elements of forms can be customized, which are meant to change browser defaults. You can change the design of the radio button, checkbox, slider, i.e., range, dropdown menu, file upload dialog box trigger, toggle button, etc.

                    MongoDB - Concept of Replication

                    In MongoDB, replication can be implemented for the processing where it is taken care of that same data is accessible on more than a single MongoDB server. Through this concept of MongoDB, the availability of data increases. In this chapter, you will learn about this concept.

                      MongoDB - Concept of Aggregation

                      In MongoDB, aggregation can be defined as the operation that is used for processing various types of data in the collection, which returns a calculated result. In this chapter, you will learn about the concept of aggregation that s supported by MongoDB.

                        MongoDB - Indexing

                        Indexing is a necessary operation in MongoDB which brings efficiency in various execution of statements. In this chapter, you will learn about the concept of indexing and how it can be implemented in the MongoDB database.

                          MongoDB - Sorting

                          Sorting is one of the necessary database operations. It helps to simplify readability and sort the data as per the requirement. In this chapter, you will learn about sorting concept and how it can be implemented in the MongoDB database.

                            MongoDB - Concept of Sharding

                            Sharding is an approach of distributing data across different machines. In other words, it can be said that the sharding concept is used for splitting large data sets into undersized data sets across several MongoDB instances. In this chapter, you will learn about this MongoDB feature name - sharding.

                              SQL Injection and Preventive Measures

                              SQL Injection, which is abbreviated as SQLi, is one of the popular databases attacking technique that poisons dynamic SQL statements that blur out certain segments of the query assertion or append an additional condition leads the logic to true.

                                Scroll Back to Top