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  1. #1
    Join Date
    Apr 2017
    Posts
    2

    Default Fixed gradient background -> transparent image no longer transparent scrolling up

    Hi all,

    when I have a fixed gradient backgound and scroll up, transparent images suddenly get a background, are no longer transparent.

    Do you know if there is any workaround? Or am I making some basic mistake here?

    I put a simple example online: fixed-gradient-background

    It looks like this scrolling up:

    Thanks for your help!
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  2. #2
    Join Date
    Aug 2000
    Location
    Placitas, New Mexico, USA
    Posts
    41,487

    Default Re: Fixed gradient background -> transparent image no longer transparent scrolling up

    Welcome to TalkGraphics

    Heh heh. I see what is happening. Looks like a feature. The images are being converted to JPEG which do not support transparency. So as long as the page does not scroll everything looks fine.

    You might try this. Right click on the image, and select Optimize Photo. Select PNG > TrueColor + Alpha. I think that will do the trick.

  3. #3
    Join Date
    Aug 2000
    Location
    Harwich, Essex, England
    Posts
    21,895

    Default Re: Fixed gradient background -> transparent image no longer transparent scrolling up

    OR with the image selected go Web Properties / Image / Web Image Type & select PNG.
    Egg

    Intel i7 - 4790K Quad Core + 16 GB Ram + NVIDIA Geforce GTX 1660 Graphics Card + MSI Optix Mag321 Curv monitor
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  4. #4
    Join Date
    Apr 2017
    Posts
    2

    Default Re: Fixed gradient background -> transparent image no longer transparent scrolling up

    Gary and Egg,

    I'd never had thought of a .png being made into a .jpg, but that's just the way the software works - now, everything makes sense again
    Setting the image back to .png works fine!

  5. #5
    Join Date
    Aug 2000
    Location
    Placitas, New Mexico, USA
    Posts
    41,487

    Default Re: Fixed gradient background -> transparent image no longer transparent scrolling up


  6. #6
    Join Date
    Aug 2000
    Location
    Harwich, Essex, England
    Posts
    21,895

    Default Re: Fixed gradient background -> transparent image no longer transparent scrolling up

    ditto
    Egg

    Intel i7 - 4790K Quad Core + 16 GB Ram + NVIDIA Geforce GTX 1660 Graphics Card + MSI Optix Mag321 Curv monitor
    + Samsung 970 EVO Plus 500GB SSD + 232 GB SSD + 250 GB SSD portable drive + ISP = BT + Web Hosting = TSO Host

 

 

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