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    The :default CSS pseudo-class represents any user interface element that is the default among a group of similar elements.

    For example, the default button in a set of buttons could be selected using this pseudo-class.

    User interface elements that permit multiple selections may have multiple defaults set in order to initially appear with multiple items selected. In that case all defaults can be represented using the :default pseudo-class.


    :default { /* style properties */ }


        background-color: lime;


     <form method="get">
      <p><input type="submit" id="submit1"></p>
      <p><input type="submit" id="submit2"></p>
      <p><input type="reset"></p>

    This example causes the background color to be lime for the default submit button in the form.


    Specification Status Comment
    WHATWG HTML Living Standard
    The definition of ':default' in that specification.
    Living Standard No change.
    The definition of ':default' in that specification.
    Recommendation Defines the semantic regarding HTML and constraint validation.
    Selectors Level 4
    The definition of ':default' in that specification.
    Working Draft No change.
    CSS Basic User Interface Module Level 3
    The definition of ':default' in that specification.
    Working Draft Defines the pseudo-class, but not the associated semantic.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support 10.0 4.0 (2.0) Not supported 10.0 5.0
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support ? 4.0 (2.0) Not supported 10.0 5.0


    Document Tags and Contributors

    Contributors to this page: Sheppy, McGurk, teoli, Kohei, jsx, BenoitL, brianloveswords, Mgjbot, Miken32, kscarfone
    Last updated by: jsx,