jm2l/jm2l/static/img/shadow.svg

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
        viewBox="-50 -50 200 200">
  <defs>
    <filter id="dropshadow" height="130%">
      <feGaussianBlur in="SourceAlpha" stdDeviation="3"/> 
      <feOffset dx="2" dy="2" result="offsetblur"/>
      <feComponentTransfer>
        <feFuncA type="linear" slope="0.2"/>
      </feComponentTransfer>
      <feMerge> 
        <feMergeNode/>
        <feMergeNode in="SourceGraphic"/> 
      </feMerge>
    </filter>
    <linearGradient id="BoxGradient-Conference" spreadMethod="pad" x1="100%" y1="0%" x2="50%" y2="100%">
      <stop offset="0%"   stop-color="#EEE" stop-opacity="0"/>
      <stop offset="15%" stop-color="#BDF86B" stop-opacity=".5"/>
    </linearGradient>
    <linearGradient id="BoxGradient-Atelier" spreadMethod="pad" x1="100%" y1="0%" x2="50%" y2="100%">
      <stop offset="0%"   stop-color="#EEE" stop-opacity="0"/>
      <stop offset="15%" stop-color="#FF856E" stop-opacity=".5"/>
    </linearGradient>
    <linearGradient id="BoxGradient-Table-ronde" spreadMethod="pad" x1="100%" y1="0%" x2="50%" y2="100%">
      <stop offset="0%"   stop-color="#EEE" stop-opacity="0"/>
      <stop offset="15%" stop-color="#F369A5" stop-opacity=".5"/>
    </linearGradient>
    <linearGradient id="BoxGradient-Concert" spreadMethod="pad" x1="100%" y1="0%" x2="50%" y2="100%">
      <stop offset="0%"   stop-color="#EEE" stop-opacity="0"/>
      <stop offset="15%" stop-color="#65EA92" stop-opacity=".5"/>
    </linearGradient>
  </defs>
</svg>