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在线手册

  • sel after

    ... and Opera 4-6 only support the old, single-colon CSS2 syntax (:after). Newer versions support the standard, double-colon CSS3 syntax (::after). Note: For :after to work in IE8, a <!DOCTYPE> must be declared. CSS Syntax ::after ...

  • sel before

    ... Opera 4-6 only support the old, single-colon CSS2 syntax (:before). Newer versions support the standard, double-colon CSS3 syntax (::before). Note: For :before to work in IE8, a <!DOCTYPE> must be declared. CSS Syntax ::before ...

  • sel firstletter

    ... support the old, single-colon CSS2 syntax (:first-letter). Newer versions support the standard, double-colon CSS3 syntax (::first-letter). CSS Syntax ::first-letter {    css declarations;} Demo Related Pages CSS ...

  • sel firstline

    ... 4-6 only support the old, single-colon CSS2 syntax (:first-line). Newer versions support the standard, double-colon CSS3 syntax (::first-line). CSS Syntax ::first-line {    css declarations;} Demo Related Pages CSS ...

  • sel invalid

    ... selector to select form elements with a value that validates according to the element's settings. Version: CSS3 Browser Support The numbers in the table specifies the first browser version that fully supports the selector ...

  • sel selection

    CSS3 ::selection Selector « Previous CSS Selectors Reference Next » Example Make the selected text red on a yellow background: ::-moz-selection { /* Code for Firefox */    color: red;  & ...

  • index

    ... ， 这样读者可以很容易的克隆自己的私有版本来进行在线测试。 HTML5 Reffer CSS3 Reffer JavaScript Reffer ...

  • dom obj style

    ... The "CSS" column indicates in which CSS version the property is defined (CSS1, CSS2, or CSS3). Property Description CSS alignContent Sets or returns the alignment between the lines inside a flexible ...

  • met document queryselectorall

    ... : Internet Explorer 8 has support for CSS2 selectors. IE9 and later versions have support for CSS3 as well. Syntax document.querySelectorAll(CSS selectors) Parameter Values Parameter Type Description CSS selectors String ...

  • met element queryselectorall

    ... : Internet Explorer 8 has support for CSS2 selectors. IE9 and later versions have support for CSS3 as well. Syntax element.querySelectorAll(CSS selectors) Parameter Values Parameter Type Description CSS selectors String ...

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