HTML5 weather forecast card design effect

<link rel="stylesheet" href="css/style.css">
<script src="path/to/jquery.min.js" type="text/javascript"></script>
<script src=&#39;https://cdnjs.cloudflare.com/ajax/libs/gsap/1.19.0/TweenMax.min.js&#39;></script>
<script src=&#39;https://cdnjs.cloudflare.com/ajax/libs/snap.svg/0.4.1/snap.svg-min.js&#39;></script>
<script src="js/main.js"></script>

<div class="background">
    <div class="container"> 
      <svg id="back">
        <radialGradient id="SVGID_1_" cx="0" cy="0" r="320.8304" gradientUnits="userSpaceOnUse">
          <stop  offset="0" style="stop-color:#FFDE17;stop-opacity:0.7"/>
          <stop  offset="1" style="stop-color:#FFF200;stop-opacity:0"/>
        </radialGradient>
        <path id="sunburst" style="fill:url(#SVGID_1_);" d="M0,319.7c-18.6,0-37.3-1.6-55.5-4.8L-7.8,41.4c5.1,0.9,10.6,0.9,15.7,0L56,314.8C37.6,318,18.8,319.
        7,0,319.7z
       M-160.8,276.6c-32.5-18.8-61.3-42.9-85.5-71.6L-34,26.2c3.4,4.1,7.4,7.4,12,10.1L-160.8,276.6z M161.3,276.4L22.1,36.2
      c4.5-2.6,8.6-6,12-10.1l212.6,178.5C222.5,233.4,193.8,257.6,161.3,276.4z M-302.5,108.3C-315.4,73-321.9,36-322-1.8l277.6-0.5
      c0,5.3,0.9,10.4,2.7,15.2L-302.5,108.3z M302.6,107.8L41.8,12.8c1.7-4.7,2.6-9.7,2.6-14.9c0-0.3,0-0.6,0-1H322l0-1.3l0,1.9
      C322,35.4,315.5,72.5,302.6,107.8z M-41.8-17.5l-261-94.5c12.8-35.4,31.6-68,55.8-96.9L-34.1-30.8C-37.5-26.8-40.1-22.3-41.8-17.5z
       M41.7-17.7c-1.8-4.8-4.4-9.3-7.8-13.3l212-179.2c24.3,28.8,43.3,61.3,56.3,96.6L41.7-17.7z M-22.2-40.8l-139.6-240
      c32.7-19,68.1-32,105.2-38.6L-8-46.1C-13-45.2-17.8-43.4-22.2-40.8z M22-40.9c-4.4-2.6-9.2-4.3-14.2-5.1l47.1-273.6
      c37.2,6.4,72.7,19.2,105.4,38L22-40.9z"/>
      </svg>
      <nav>
        <ul>
          <li><a id="button-snow" class="active"><i class="wi wi-snow"></i></a></li>
          <li><a id="button-wind"><i class="wi wi-strong-wind"></i></a></li>
          <li><a id="button-rain"><i class="wi wi-rain"></i></a></li>
          <li><a id="button-thunder"><i class="wi wi-lightning"></i></a></li>
          <li><a id="button-sun"><i class="wi wi-day-sunny"></i></a></li>
        </ul>
      </nav>
      <div id="card" class="weather">
        <svg id="inner">
          <defs>
            <path id="leaf" d="M41.9,56.3l0.1-2.5c0,0,4.6-1.2,5.6-2.2c1-1,3.6-13,12-15.6c9.7-3.1,19.9-2,26.1-2.1c2.7,0-10,23.9-20.5,25 
            c-7.5,0.8-17.2-5.1-17.2-5.1L41.9,56.3z"/>
          </defs>
          <circle id="sun" style="fill: #F7ED47" cx="0" cy="0" r="50"/>
          <g id="layer3"></g>
          <g id="cloud3" class="cloud"></g>
          <g id="layer2"></g>
          <g id="cloud2" class="cloud"></g>
          <g id="layer1"></g>
          <g id="cloud1" class="cloud"></g>
        </svg>
        <div class="details">
          <div class="temp">20<span>c</span></div>
          <div class="right">
            <div id="date">Monday 22 August</div>
            <div id="summary"></div>
          </div>
        </div>
      </div>
      <svg id="outer"></svg>
    </div>
</div>