Example analysis:
The font-weight attribute is used to set the thickness of the text.
The following attribute values can be set:
| Value | Description |
|---|---|
| normal | Default value, defines standard characters. |
| bold | Define bold characters. |
| bolder | Define bolder characters. |
| lighter | Define finer characters. |
| ##○ 100○ 200○ 300○ 400○ 500○600○700○800○900 | Define characters from thick to thin. 400 is equivalent to normal, and 700 is equivalent to bold.
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