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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-scroll-snap/snap-after-initial-layout/scroll-snap-initial-layout-000.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>
On-screen vs. Off-screen Snapped Initial Scroll Position (Mandatory and Proximity)
</title>
<!-- Test assumes 2px proximity is enough to snap.
If your implementation has a cogent argument as to why this is too much,
please request a change to this test. ~fantasai -->
<link rel="match" href="scroll-snap-initial-layout-000-ref.html">
<style>
body {
position: absolute;
bottom: 0;
top: 0;
left: 0;
right: 0;
overflow: hidden;
}
.scroller {
scroll-snap-type: both mandatory;
overflow: hidden;
scroll-padding: 0;
width: 100px;
height: 100px;
border: solid blue;
margin: 10px;
display: inline-block;
}
.mandatory > .scroller {
scroll-snap-type: both mandatory;
}
.proximity > .scroller {
scroll-snap-type: both proximity;
}
.scroller > div {
/* padding wrapper */
width: 30px;
}
.scroller > div > div {
/* target box */
height: 30px;
background: orange;
scroll-snap-align: start;
}
.proxfar {
border-color: orange;
}
.proxfar > div > div {
background: red;
}
</style>
<p>Test passes if there is an orange square precisely at the top left corner of each blue box (no gap),
and each orange box is empty.
<div class="mandatory">
<!-- off-screen -->
<div class="scroller">
<div style="padding: 110px;"><div class="small-target"></div></div>
</div>
<div class="scroller">
<div style="padding-block: 110px;"><div class="small-target"></div></div>
</div>
<div class="scroller">
<div style="padding-inline: 110px;"><div class="small-target"></div></div>
</div>
<!-- on-screen -->
<div class="scroller">
<div style="padding: 90px;"><div class="small-target"></div></div>
</div>
<div class="scroller">
<div style="padding-block: 90px;"><div class="small-target"></div></div>
</div>
<div class="scroller">
<div style="padding-inline: 90px;"><div class="small-target"></div></div>
</div>
</div>
<div class="proximity">
<!-- off-screen -->
<div class="scroller proxfar">
<div style="padding: 110px;"><div class="small-target"></div></div>
</div>
<div class="scroller proxfar">
<div style="padding-block: 110px;"><div class="small-target"></div></div>
</div>
<div class="scroller proxfar">
<div style="padding-inline: 110px;"><div class="small-target"></div></div>
</div>
<!-- on-screen -->
<div class="scroller">
<div style="padding: 2px 110px 110px 2px;"><div class="small-target"></div></div>
</div>
<div class="scroller">
<div style="padding: 2px 110px 110px 2px;"><div class="small-target"></div></div>
</div>
<div class="scroller">
<div style="padding: 2px 110px 110px 2px;"><div class="small-target"></div></div>
</div>
</div>