HTML5 天気予報カードのデザイン効果

<link rel="stylesheet" href="css/style.css">
<script src="path/to/jquery.min.js" type="text/javascript"></script>
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<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"/>
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      </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 
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          <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>