I have an issue with max-width
media rule. I test to hide the elements on different max-width
values and the behavior is inconsistent. I have tested 4 scenarios varying in the screen width.
column639
still to be hidden!Question:
What causes the pixels inaccuracy in the Scenario 2 and why is 639px
value treated differently than others?
Reproducibility:
Strangely, it cannot be reproduced everywhere (resize the window to the width of 693px
:
86.1.6938.200
, 64-bit
)87.0.4280.88
, 64-bit
)Code:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<h1>max-width issue</h1>
<div class="column column639">
<h2>Column 1</h2>
</div>
<div class="column column640">
<h2>Column 2</h2>
</div>
</body>
</html>
.column {
width: 100%;
background-color: cyan;
}
@media screen and (max-width: 639px) {
.column639 {
visibility: hidden;
}
}
@media screen and (max-width: 640px) {
.column640 {
visibility: hidden;
}
}
Scenarios:
Scenario 1: Screen width is 638px
:
Scenario 2: Screen width is 639px
:
This was reported and accepted as a bug reproducible on multiple versions. Currently, it's on review by the development team.
Follow the issue #1162102 for more details, however, I will update the answer once the issue is resolved.
EDIT: Resolution as won't fix. The behavior for the 640px boundary is said unfortunate: https://issues.chromium.org/issues/40162653#comment37
I have no clue as a non-FE developer on what to do...