On October 21, 2010, Microsoft launched Windows Phone 7, a mobile phone whose user interface was created using flat design.
The new visual style received positive feedback, and Microsoft used flat design elements in the design of the Windows 8 graphics interface.
On October 18, 2006, Microsoft released Internet Explorer 7.0.
IE7 was the default browser in Windows Vista, Windows Server 2008 and Windows Embedded POSReady 2009.
In October 1998 Todd Fahrner began working on the Box Acid Test (Acid1) project, which tested if web browsers supported the CSS language. The test itself is a simple web page that contains several HTML elements modified by CSS.
In October 1998 two Danish web designers, Michael Schmidt and Toke Nygaard, launched a community website for designers, called Kaliber10000 (K10k).
Kaliber10000 (K10k) website in 2003
On October 13, 1994, The Mosaic Communications Corporation launched, under the name Mosaic Netscape 0.9, the first one in a series of browsers, called Netscape Navigator.