佑寬https://htmlpreview.github.io/?https://github.com/Eskartur/nlpWebClass/blob/main/anthem/main.html
https://stackoverflow.com/questions/183532/what-is-the-difference-between-html-div-and-span-elements
--- ## String and Number ```JavaScript console.log(4 + 4) // 8 console.log("4" + "4") // 44 console.log("4" + 1) // 41 console.log(400 + "400") // 400400 ```