css中的角度單位有:1、deg,度(Degress),一個圓共360度;2、grad,梯度(Gradians),一個圓共400梯度;3、rad,弧度(Radians ),一個圓共2π弧度;4、turn,圈(Turns),一個圓共1圈。
css中的角度單位
##1、deg
度(Degress)。一個圓共360度90deg = 100grad = 0.25turn ≈ 1.570796326794897rad<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <style> .test{ height:100px;background:#eee; -moz-transform:rotate(2deg); -webkit-transform:rotate(2deg); -o-transform:rotate(2deg); -ms-transform:rotate(2deg); transform:rotate(2deg); } </style> </head> <body> <div>transform:rotate(2deg);</div> </body> </html>
#2、grad
梯度(Gradians)。一個圓共400梯度90deg = 100grad = 0.25turn ≈ 1.570796326794897rad<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <style> .test{ height:100px;background:#eee; -moz-transform:rotate(2grad); -webkit-transform:rotate(2grad); -o-transform:rotate(2grad); -ms-transform:rotate(2grad); transform:rotate(2grad); } </style> </head> <body> <div>transform:rotate(2grad);</div> </body> </html># #弧度(Radians)。一個圓共2π弧度
90deg = 100grad = 0.25turn ≈ 1.570796326794897rad
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <style> .test{ height:100px;background:#eee; -moz-transform:rotate(2rad); -webkit-transform:rotate(2rad); -o-transform:rotate(2rad); -ms-transform:rotate(2rad); transform:rotate(2rad); } </style> </head> <body> <div>transform:rotate(2rad);</div> </body> </html>#4、turn
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<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <style> .test{ height:100px;background:#eee; -webkit-transform:rotate(.5turn); -o-transform:rotate(.5turn); -ms-transform:rotate(.5turn); transform:rotate(.5turn); } </style> </head> <body> <div>transform:rotate(.5turn);</div> </body> </html#4、turn 轉、圈(Turns)。一個圓共1圈
90deg = 100grad = 0.25turn ≈ 1.570796326794897rad
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