CSS

1.CSS

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2.selector 1

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3.selector 2

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4.selector 3

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5.selector 4

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6.cascading

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7.inheritance

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8.font-size

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9.color

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10.text-align

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11.font-family, font-weight, line-height

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12.inline-block

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13.box

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14.box-sizing

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15.margin-collapsing 1

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16.margin-collapsing 2

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17.margin-collapsing 3

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18.position 1

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19.position 2

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20.position 3

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21.flex 1

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22.flex 2

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23.flex 3

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24.media

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25.media 2

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26.float

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27.multi-column

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28.background

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29.filter

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30.transform

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31.transition

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32.link, import

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