CSS 字体合成属性
原文:https://www.geeksforgeeks.org/css-font-synthesis-property/
字体合成属性控制浏览器合成缺少的字体样式，如粗体、斜体或下划线。 不同的字体语言(如中文和日文)不包括这些字体变体，因此合成它们可能会妨碍文本的易读性，因此必须关闭字体的默认浏览器合成。
语法:
font-synthesis: none | weight | style | style weight;
属性值:
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none: None indicates that one can not synthesize the weight and style typeface.
语法:
html font-synthesis:none;示例:
html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <style> em { font-weight: bold; } .para { font-synthesis: none; } </style> <body> <span>With font-synthesis: none</span><br> <em class="para">Geeks for geeks | ???</em> <br/> <span>Without font-synthesis property </span><br> <em>Geeks for geeks | ???</em> </body> </html>输出:
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Style: According to this a italic typeface may be synthesized by the browser if required.
语法:
html font-synthesis: style示例:
html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <style> em { font-weight: bold; } .para { font-synthesis: style; } </style> <body> <span>Without font-synthesis property</span><br> <em>Geeks for geeks | ???</em> <br> <span>With font-synthesis: Style </span><br> <em class="para">Geeks for geeks | ???</em> </body> </html>输出:
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weight: According to this a bold typeface may be synthesized by the browser if required.
语法:
html font-synthesis: weight示例:
html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <style> em { font-weight: bold; } .para { font-synthesis: weight; } </style> <body> <span>Without font-synthesis property</span><br> <em>Geeks for geeks | ???</em> <br> <span>With font-synthesis: Weight</span><br> <em class="para">Geeks for geeks | ???</em> </body> </html>输出:
![]()
-
Style weight: According to this a bold and italic typeface may be synthesized by the browser if required.
语法:
html font-synthesis: style weight示例:
html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <style> em { font-weight: bold; } .para { font-synthesis: style weight; } </style> <body> <span>Without font-synthesis property</span><br> <em>Geeks for geeks | ???</em> <br> <span>With font-synthesis: Style Weight</span><br> <em class="para">Geeks for geeks | ???</em> </body> </html>输出:
![]()
支持的浏览器:
- 火狐浏览器
- 苹果 Safari
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