mauvm

$ npm install --save babel-cli babel-preset-es2015
$ npm install --save-dev jasmine

.babelrc:

{
 "presets": ["es2015"]

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

MoOx

%reset-Button {
    border: none;
    margin: 0;
    padding: 0;
    width: auto;
    overflow: visible;

    background: transparent;

    /* inherit font & color from ancestor */