HTML: the Root Element
What is Root Element
- Root element of HTML is the element represented by the
html
tag. - Root element of XML may be other, depending on the XML. e.g. root element of SVG is represented by the
svg
tag. 〔see Practical SVG Tutorial〕 - Root element of Atom Webfeed is
feed
.
Why is Root Element Important
It's important because many CSS's meaning refers to it.
For example:
- Length Unit
rem
refers to root element. - Position Property refers to root element.