HTML AND CSS QUESTION:

Use HTML and CSS to create a simple responsive website using Flexbox. Use an external CSS file and link it to the HTML file. Also use CSS media queries to accommodate for three different layouts depending on the screen of the device. The three designs will be single column, three column, and six column layout. Put any three pictures in each column. Also make sure that the HTML has a header tag with the class attribute value hd, a section tag with the attribute value main, a footer tag with the value attribute of ft, and the rest of the classes you name and come up with. Also make sure the CSS is well commented.