The first line in the head section is the charset declarations. This tells the browser on the character set used to interpret the document.
In this case the document is an html document encoded in the charset specified. The charset used here is UTF-8.
Using UTF-8 will allow the page to interprete all the different character sets such as German and Chinese in the world.
<!DOCTYPE html> <html> <head lang='en'> <meta charset='UTF-8'> <title></title> </head> <body> </body> </html>