Marching Ants

<div class="nuda-dmb-border">
  <svg class="nuda-dmb-border__svg" viewBox="0 0 200 80" fill="none" preserveAspectRatio="none" aria-hidden="true">
    <rect class="nuda-dmb-border__rect" x="2" y="2" width="196" height="76" rx="10"
          stroke="#e4ff54" stroke-width="2" pathLength="100" />
  </svg>
  <span class="nuda-dmb-border__label">Marching Ants</span>
</div>

.nuda-dmb-border {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #1a1a1a;
  border-radius: 10px;
  padding: 22px 36px;
  min-width: 160px;
}

.nuda-dmb-border__svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.nuda-dmb-border__rect {
  stroke-dasharray: 4 4;
  animation: _nuda-dmbMarch 1s linear infinite;
}

.nuda-dmb-border__label {
  color: #cfcfcf;
  font-size: .85rem;
  position: relative;
}

@keyframes _nuda-dmbMarch {
  to {
    stroke-dashoffset: -8;
  }
}

@media (prefers-reduced-motion:reduce) {
  .nuda-dmb-border__rect {
    animation: none;
  }
}