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Thread: Help with CSS statement

  1. #1
    Join Date
    Feb 2018
    Location
    Midwest USA
    Posts
    3

    Question Help with CSS statement

    I'm trying to modify a CSS statement for a body image graphic. Unfortunately, the CSS as shown doesn't adjust for device size. The current result is a great image for desktops, but horribly blown up for smaller devices.

    #bodyimage { background-image:
    url(%resource(image_2.jpg)%); }

    How can I conditionally control the image by device size, or conditionally allow for two or three graphics based on device size?

  2. #2
    Join Date
    Dec 2012
    Posts
    1,628
    Try this:
    Code:
    #bodyimage {
        background-image: url(%resource(image_2.jpg)%);
        background-size: cover;
    }

  3. #3
    Join Date
    Feb 2018
    Location
    Midwest USA
    Posts
    3
    Thank you Sempervivum, it works great on larger screens.

    If I wanted to use two statements, one using 'contain' for smaller devices and one using 'cover' for larger devices, how could I make CSS conditionally choose based on screen sizes?

  4. #4
    Join Date
    Dec 2012
    Posts
    1,628
    Conditional CSS based on screensize can be done by media queries:
    https://www.w3schools.com/css/css3_mediaqueries.asp

  5. #5
    Join Date
    Feb 2018
    Location
    Midwest USA
    Posts
    3
    Worked Great! - Thanks

    @media only screen and (min-device-width : 320px) and (max-device-width : 480px) {
    /* Styles */
    }
    #bodyimage {
    background-image: url(%resource(image_2_R.jpg)%);
    background-size: contain;
    }

    @media screen and (min-width: 640px) {
    #bodyimage {
    background-image: url(%resource(image_2_R.jpg)%);
    background-size: cover;
    }

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