is this header curve an image or code?

[MASSEY]

http://www.brightidea.com/

the circles are an image but what about the curve behind it?

Cheers.

 

[arnydnxluk]

It's an SVG image

http://www.brightidea.com/wp-content/uploads/rounded-shape-2.svgz

 

[MASSEY]

Thanks. Do those respond well on all devices? What if that is viewed on a big screen would it look weird or is that pretty much a universal thing?

 

[UKSBD]

It doesn't work at all on IE.
All I see is a straight line