HTML and CSS Reference
In-Depth Information
Angles
The format of an
<angle>
is expressed as a
<number>
followed immediately by an angle
unit. There are four types of angle units: degrees (
deg
), grads (
grad
), radians (
rad
), and
turns (
turn
). For example, a right angle could be declared as
90deg
,
100grad
,
1.571rad
, or
0.25turn
; in each case, the values are translated into degrees in the range 0 through 360. This
is also true of negative values, which are allowed. The measure
−90deg
is the same as
270deg
.
