et-relative">
  <span style="background: #fff"
    >CSS background with image-set() (relative)</span
  >
</div>
<div class="css-image-set-without-url-call">
  <span style="background: #fff"
    >CSS background with image-set() (relative)</span
  >
</div>
<div class="css-image-set-with-var">
  <span style="background: #fff">
    CSS background image-set() (relative in var)
  </span>
</div>
<div class="css-image-set-mix-url-var">
  <span style="background: #fff">
    CSS background image-set() (mix var and ur