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    Window.devicePixelRatio

    The Window.devicePixelRatio read-only property returns the ratio of the (vertical) size of one physical pixel on the current display device to the size of one device independent pixels(dips).

    There are no callbacks or events to listen to when this value changes (for example, if you drag the window between displays with different densities).

    Syntax

    value = window.devicePixelRatio;

    Specifications

    Specification Status Comment
    CSS Object Model (CSSOM) View Module
    The definition of 'Window.devicePixelRatio' in that specification.    		 Working Draft Initial definition

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support ? ? ? ? ?
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support ? ? ? ? ?

    See also

    Document Tags and Contributors

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     Contributors to this page: jsx, Jiang-Xuan, darktrojan, Chris_Chan, Sebastianz, fscholz, Jonathan_Watt, teoli, Sole
     Last updated by: jsx,