Today, the idea of responsive web design turns five. An Event Apart posted about the anniversary of Ethan Marcotte’s talk in Seattle in 2010 where he first proposed the idea.

I listened to the talk today, which I hadn’t heard before. I remember first reading the canonical A List Apart article on the subject at my job when I first jumped into web work. My first thought? “I have to make this happen on our site.” As the anniversary post points out:

After that day, nothing in web design or development would ever be the same.