I still can't believe I have already done all the HTML course sections. After I shared all my study notes and learning process in the blog, now I don't feel scared anymore. Instead, I feel so much earned. So, it is time to start to learn CSS which will transform our web page into a customized style. What is CSS? CSS stands for "cascading style sheets" . It is a language for specifying how documents are presented to users such as how they are styled and laid out. (Defination from MDN "How CSS Work") CSS is like a decoration for your store. Nobody wants to visit an boring web page with only text just like nobody likes to enter a store without any creative design. CSS can make our sites more unique and more attractive, so customers are willing to stay the site and to explore more information. General Rule of CSS: "Selector" is the HTML tags which we want to make special style such as <h1>, <p>, <li>, <body> e...