<svg xmlns="http://www.w3.org/2000/svg" id="flag-icon-css-sd" viewBox="0 0 640 480">
  <defs>
    <clipPath id="sd-a">
      <path fill-opacity=".7" d="M0 0h682.7v512H0z"/>
    </clipPath>
  </defs>
  <g fill-rule="evenodd" stroke-width="1pt" clip-path="url(#sd-a)" transform="scale(.9375)">
    <path d="M0 341.3h1024V512H0z"/>
    <path fill="#fff" d="M0 170.6h1024v170.7H0z"/>
    <path fill="red" d="M0 0h1024.8v170.7H0z"/>
    <path fill="#009a00" d="M0 0v512l341.3-256L0 0z"/>
  </g>
</svg>