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Responsive images have landed

Responsive images have landed

An introduction to responsive images standards: , @srcset and @sizes.

Derek Johnson

October 09, 2014
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  1. Responsive
    images
    !
    Derek Johnson

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  5. • Resolution switching
    • Viewport based
    • Pixel density
    • Art direction
    • Design breakpoints
    • Media types
    • Relative units
    • Image formats
    • User control of source

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  6. srcset>

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  7. srcset=
    “cat.jpg 1x, cat2.jpg 2x”

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  11. srcset=
    “cat.jpg 300w, cat2.jpg 600w”

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  19. srcset=
    “cat.jpg 300w, cat2.jpg 600w”
    sizes=
    “(min-width:50em) 30vw,
    (min-width:20em) 50vw,
    100vw”

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  29. sizes="(min-width:78.947em) 18.75em,
    (min-width:74em) 23.75vw,
    (min-width:60em) 31.6666667vw,
    (min-width:38em) 47.5vw,
    95vw"
    type="image/webp">
    sizes="(min-width:78.947em) 18.75em,
    (min-width:74em) 23.75vw,
    (min-width:60em) 31.6666667vw,
    (min-width:38em) 47.5vw,
    95vw"
    type="image/jpeg">


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  30. browser support

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  31. polyfill

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