paulirish

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

aarongustafson

<table>
  <thead>
    <tr>
      <th scope="col">Name</th>
      <th scope="col">Email</th>
      <th scope="col">Dept, Title</th>
      <th scope="col">Phone</th>
    </tr>
  </thead>
  <tbody>

chriscoyier

@media only screen and (min-width: 320px) {

  /* Small screen, non-retina */

}

@media
only screen and (-webkit-min-device-pixel-ratio: 2)      and (min-width: 320px),
only screen and (   min--moz-device-pixel-ratio: 2)      and (min-width: 320px),
only screen and (     -o-min-device-pixel-ratio: 2/1)    and (min-width: 320px),

parrfolio

pre {
	white-space: pre;           /* CSS 2.0 */
	white-space: pre-wrap;      /* CSS 2.1 */
	white-space: pre-line;      /* CSS 3.0 */
	white-space: -pre-wrap;     /* Opera 4-6 */
	white-space: -o-pre-wrap;   /* Opera 7 */
	white-space: -moz-pre-wrap; /* Mozilla */
	white-space: -hp-pre-wrap;  /* HP Printers */
	word-wrap: break-word;      /* IE 5+ */
}