Babel includes JSX processing.
Any URL's added here will be added as
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<div class="a"></div> <div class="b"></div> <div class="c"></div>
div border: 5px solid red display: inline-block height: 400px margin: 16px width: 400px .a background-repeat: no-repeat background-position: center //background-repeat and background-position doesn't work because background resets those two, because background is shorthand property background: url('http://placekitten.com/200/200') .b, .c border-color: lightgreen .b //if background property is at the top then it will work background: url('http://placekitten.com/200/200') background-repeat: no-repeat background-position: center .c background-repeat: no-repeat background-position: center //you can use background-image anywhere and other background properties will work anyway because we are not using any shorthand background-image: url('http://placekitten.com/200/200')
Also see: Tab Triggers