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              <h1><code>canvas/svg</code> 2:1 aspect ratio is preserved</h1>

<div class="Icon" style="height:2rem">
  <canvas class="Icon-canvas" height="1" width="2"></canvas>
  <svg class="Icon-svg"></svg>
</div>

<br>

<div class="Icon" style="height:5rem">
  <canvas class="Icon-canvas" height="1" width="2"></canvas>
  <svg class="Icon-svg"></svg>
</div>
            
          
!
            
              svg { background: #55acee; }
/**
 * HACK
 *
 * IE 9–11 do not preserve the aspect ratio of the svg. The svg element
 * will default to a width of 300px (the default for replaced content
 * elements).
 *
 * A canvas of the correct aspect ratio is used to provide a scalable frame.
 * The svg is positioned to fit the frame.
 */

/*
 * 1. Default height of the icon. Allows the icon to scale with font-size, or
 *    be directly sized.
 * 2. Create a positioning context.
 */
.Icon {
  display: inline-block;
  height: 1.25em; /* 1 */
  position: relative; /* 2 */
  user-select: none;
}

/**
 * Framing element. The dimensions of the canvas are determined by the outer view.
 *
 * 1. Make the canvas fill all vertical space so that the icon can be resized
 *    in context.
 * 2. Ensure the canvas is never visible.
 */
.Icon-canvas {
  display: block;
  height: 100% !important; /* 1 */
  visibility: hidden; /* 2 */
}

/**
 * Absolutely position the svg within the frame.
 */
.Icon-svg {
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
}
            
          
!
999px
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