HTML and CSS Reference
In-Depth Information
Viewport width unit
iewport width unit(
vvw
)
This unit is calculated with respect to the viewport's width, which is divided by 100. If
the viewport is 937 pixels wide, for example,
1vw
is equal to
9.37px
. If the viewport's
width changes, say by dragging the browser window wider or more narrow, the value of
vw
changes along with it.
Viewport height unit
iewport height unit(
vvh
)
This unit is calculated with respect to the viewport's height, which is divided by 100. If
the viewport is 650 pixels tall, for example,
1vh
is equal to
6.5px
. If the viewport's height
changes, say by dragging the browser window taller or shorter, the value of
vh
changes
along with it.
Viewport minimum unit
iewport minimum unit(
vvm
)
This unit is 1/100 of the viewport's width or height, whichever is lesser. Thus, given a
viewport that is 937 pixels wide by 650 pixels tall,
1vm
is equal to
6.5px
.