Materials need to be prepared are: computer, browser, html editor.
1. First, open the html editor, create a new html file, for example: index.html.
2, in the index.html <style> tag, css code enter:
body {text-shadow:-1px 0 white,0 1px white,1px 0 white,0 -1px white;}
3, the browser run index.html page, then add the font to the success of a white border.