<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200">
  <rect width="200" height="200" fill="#555555" rx="12"/>
  <text x="100" y="60" font-family="Arial" font-size="20" font-weight="bold" fill="white" text-anchor="middle">Desetidenní</text>
  <text x="100" y="100" font-family="Arial" font-size="28" font-weight="bold" fill="white" text-anchor="middle">10 dní</text>
  <text x="100" y="150" font-family="Arial" font-size="22" fill="white" text-anchor="middle">310 Kč</text>
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