<div class="sale">Sale</div>
<svg hidden><defs>
  <filter id="stroke">
    <feMorphology operator="dilate" radius="3" in="SourceAlpha"/>
    <feGaussianBlur stdDeviation="1"/>
    <feComposite in="SourceAlpha" operator="xor" result="result"/>
    <feFlood flood-color="#FFF" result="fill"/>
    <feComposite in2="result" operator="in" result="result"/>
  </filter>
</defs></svg>

body {
  margin: 0;
  font-family: system-ui, sans-serif;
  display: grid;
  justify-items: center;
  align-items: center;
  background: linear-gradient(90deg, #F88, #88F);
  color: #FFF;
}
.sale {
  margin-top: 0.1em;
  font: 150px / 1 "Pacifico", cursive;
  filter: url(#stroke);
}
[hidden] {
  width: 0;
  height: 0;
  visibility: hidden;
}