Today I completed Lesson 3 and 4 of “Bootstrap”. Lesson 3 was about jumbotron pages, which taught me about a certain element to bootstrap called jumbotron, that I can activate by putting code within a div with the class “jumbotron”. Jumbotron code is used to express importance. Lesson 4 taught me about the Bootstrap grid system, which I can use to organize my code into a grid by putting code within divs with the classes of “row” or “col-(size of device)-(amount of columns)”. This system helps organize a page, and can tell a page how to organize the code based off of how big the device is, or how wide the window is.