Can you help identifying a bug in browser emulators?

V

vasIvas2015-10-11 16:46:12

iPhone

vasIvas, 2015-10-11 16:46:12

Below are two pictures, the first shows the emulator in FireFox, the second in Google Chrome.
As you can see, the work of the same code is different.

I don’t have an iPhone, so I would be very grateful if the happy owner of an apple phone could open the code below in it and tell me how it is displayed on a real device.

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>i-test</title>
  <style>
    body {
      background: green;
    }
    * {
      margin: 0;
      padding: 0;
    }
    .main-container {
      width: 100vw;
      height: 100vh;
      max-width: 100%;
      margin-left: auto;
      margin-right: auto; }
      .main-container:after {
        content: " ";
        display: block;
        clear: both; }

    @media (min-width: 320px) {
      .cover-container {
        width: 100%;
        height: 100%;
        background-image: url(image.png);
        background-size: contain;
        background-repeat: no-repeat;
        background-position: top; } }

    @media (min-width: 568px) {
      .cover-container {
        width: 100%;
        height: 100%;
        background-image: url(image.png);
        background-size: contain;
        background-repeat: no-repeat;
        background-position: left; } }
  </style>
</head>
<body>
  <div class="main-container">
    <div class="cover-container"></div>
  </div>
</body>
</html>

The picture is attached below. It has a yellow one pixel border which is meant to indicate borders.

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1 answer(s)

V

Valery, 2015-10-11
@vasIvas

You only have one dimension in background-position, but you need two (x and y). Firefox and webkit think out in their own way, that's why there are differences.
Replace with background-position: 0 0, or with background-position: left top, or whatever you need
upd: since safari is on a webkit, it displays like chrome: tyk