在线手册

  • ev onkeypress

    ... onkeypress Event Attribute HTML Event Attributes Example Execute a JavaScript when a user presses a key: <input type="text" onkeypress="displayResult()"> Try it yourself » Definition and Usage ...

  • ev onload

    ... Supported HTML tags: <body>, <frame>, <frameset>, <iframe>, <img>, <input type="image">, <link>, <script> and <style> More Examples Example Using onload on ...

  • tag code

    ... sample output from a computer program <kbd> Defines keyboard input <var> Defines a variable Browser Support Element < ...

  • tag em

    ... sample output from a computer program <kbd> Defines keyboard input <var> Defines a variable Browser Support Element < ...

  • tag samp

    ... Defines sample output from a computer program <kbd> Defines keyboard input <var> Defines a variable Browser Support Element <samp> ...

  • tag select

    ... Tip: The <select> element is a form control and can be used in a form to collect user input. Differences Between HTML 4.01 and HTML5 HTML5 has added some new attributes. Attributes = New in HTML5. Attribute Value ...

  • tag strong

    ... Defines sample output from a computer program <kbd> Defines keyboard input <var> Defines a variable Browser Support Element <strong> ...

  • tag textarea

    ... </textarea> Try it yourself » Definition and Usage The <textarea> tag defines a multi-line text input control. A text area can hold an unlimited number of characters, and the text renders in a fixed-width font (usually ...

  • tag tt

    ... and Usage The <tt> tag is not supported in HTML5. If <tt> was used for marking up keyboard input, consider the <kbd> element; for variables, consider the <var> element; for computer code, consider the <code> ...

  • tag var

    ... Defines sample output from a computer program <kbd> Defines keyboard input <var> Defines a variable Browser Support Element <var> ...

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