An image can overflow

(master.dev)

52 points | by ibobev 4 days ago

4 comments

  • Imzadi72 19 minutes ago
    Somewhat related, but back in the old days (maybe better to say early days) we used a different technique although purely for fun.

    Yes, you can clip an image, but you can also scale an image, making it half the size of the original. The fun-part is that Netscape Navigator would render all the even lines, and Internet Explorer rendered the uneven lines (or the other way around). Making the picture vendor-specific :-) Since almost all the current browsers use the same render-engine (and if not probably the library) you can make you image bigger and hide some watermark in the non-rendered pixels.

  • JimDabell 6 hours ago
    I’ve seen this used before to add a credit that only appears when you save the image. You append the credit to the bottom of the image, then crop the image with CSS using a technique like this to hide the credit. Then when somebody saves the image, they get the whole thing and the credit appears.
  • philipov 13 hours ago
    > Here is a demo where you can hover the image to show/hide the overflow:

    Is something supposed to happen when I hover my mouse over the image? Because nothing happens. I'm using Firefox.

    • deathanatos 13 hours ago
      You should, I think, at that point be seeing a square image of a jellyfish inside a red square. The square should be containing the image. When you hover, it should reveal the rest of the jellyfish (the image itself is rectangular, and wider than it is tall).

      (I'm also using FF, and it works for me.)

      • LoganDark 12 hours ago
        I'm using Safari on Mac and it also does not work for me.
      • philipov 12 hours ago
        yeah, I see the square jellyfish image inside the red square, but nothing changes when I hover.
      • purpleshellx 12 hours ago
        [dead]
    • bryanrasmussen 9 hours ago
      I'm using Firefox dev, it overflows for me. Are you sure you didn't hover the earlier screenshot of the unhovered image inside the red square, as opposed to the image inside a codepen embed?
      • philipov 7 hours ago
        Definitely using codepen. I can manipulate the scaling and view the html and css windows and stuff. I'm not using the latest firefox version, but it's not like this is a new feature right?
        • exploraz 6 hours ago
          Works for me on FF stable 148.0, 153.0.4, but does not with FF 145.
          • exploraz 6 hours ago
            Okay, I've figured it out, thanks to the "test distros online" thingy to test version 145 and 148 as I previously mentioned.[0]

            From Firefox 148 release notes for developers:[1]

            > The overflow, overflow-x, and overflow-y CSS properties can now be used on replaced elements such as images, in the same way that they are used with other elements. Prior to this, replaced elements were always clipped to their bounding container. (Firefox bug 1999100).

            [0]: https://news.ycombinator.com/item?id=49272986 [1]: https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Rel...

  • inigyou 1 hour ago
    It just says "403 Forbidden" - flagged for broken link.
    • exploraz 40 minutes ago
      Still working for me, your IP or browser request might be flagged by their firewall or anti-bot protection
    • ButlerianJihad 18 minutes ago
      Your own damn fault. Also it's against the HN rules to complain about "tangential annoyances" such as "my own bad behavior got me flagged and blacklisted and now it's your fault"

      https://news.ycombinator.com/item?id=49194630

      • inigyou 1 minute ago
        What behavior is that?

        "This is a broken link" is not a "tangential annoyance" and is a valid reason for flagging. It's also appropriate to comment, so that the poster or moderator can fix the link.