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                <div id="parent">
  <div id="block1"></div>
  <div id="block2"></div>
  <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse ullamcorper, magna nec cursus faucibus, ante nisi accumsan purus, quis rhoncus nulla leo non nulla. Maecenas eu imperdiet lectus. Integer libero urna, blandit in dictum sed, pharetra eget massa. Nunc ac ornare mi. Praesent et accumsan ante. Integer magna ipsum, pretium vel commodo a, consectetur quis mauris. Pellentesque placerat ligula sollicitudin, varius felis vitae, dictum dui. Cras in dignissim ante. Cras elementum mi dui, consequat scelerisque nulla vestibulum eu. Vestibulum sem dolor, vehicula fermentum volutpat non, efficitur at ipsum. Cras mollis arcu diam, sit amet efficitur justo molestie ac. In blandit augue vel ullamcorper congue. Pellentesque lacinia justo vitae erat interdum, in scelerisque ligula blandit.</p>


                #block1 {
  width: 100px;
  height: 100px;
  background-color: blue;

#block2 {
  width: 100px;
  height: 100px;
  background-color: green;
  position: fixed;
  top: 40px;
  left: 70px;