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Taking care of my baby

Tom Wu tom76kimo

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Taking care of my baby
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@ayamflow
ayamflow / gist:b602ab436ac9f05660d9c15190f4fd7b
Created May 9, 2016
Safari border-radius + overflow: hidden + CSS transform fix
View gist:b602ab436ac9f05660d9c15190f4fd7b
// Add on element with overflow
-webkit-mask-image: -webkit-radial-gradient(white, black);
@paulirish
paulirish / what-forces-layout.md
Last active Jul 7, 2020
What forces layout/reflow. The comprehensive list.
View what-forces-layout.md

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics
  • elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
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