<svg version="1.1" viewBox="0 0 12 12" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
 <defs>
  <linearGradient id="linearGradient-1" x1="50%" x2="50%" y1="-18.787%" y2="68.083%">
   <stop stop-color="#979797" offset="0"/>
   <stop stop-color="#BEBEBE" offset="1"/>
  </linearGradient>
  <rect id="path-2" x="148" y="254" width="12" height="12" rx="2"/>
  <filter id="filter-3" x="-12.5%" y="-12.5%" width="125%" height="125%">
   <feGaussianBlur in="SourceAlpha" result="shadowBlurInner1" stdDeviation="1"/>
   <feOffset dx="0" dy="1" in="shadowBlurInner1" result="shadowOffsetInner1"/>
   <feComposite in="shadowOffsetInner1" in2="SourceAlpha" k2="-1" k3="1" operator="arithmetic" result="shadowInnerInner1"/>
   <feColorMatrix in="shadowInnerInner1" values="0 0 0 0 0   0 0 0 0 0   0 0 0 0 0  0 0 0 0.5 0"/>
  </filter>
 </defs>
 <g fill="none" fill-rule="evenodd">
  <g id="Checkbox" transform="translate(-148 -254)">
   <use width="100%" height="100%" fill="#ffffff" xlink:href="#path-2"/>
   <use fill="black" filter="url(#filter-3)" xlink:href="#path-2"/>
   <rect x="148.5" y="254.5" width="11" height="11" rx="2" stroke="url(#linearGradient-1)"/>
  </g>
 </g>
</svg>