Dieser animierte Rahmen braucht kein JavaScript!

Ein animierter Rahmen, der sich um deinen Button zieht – komplett mit CSS. Kein JavaScript, keine Library – nur vier Spans, etwas transition-delay und ein bisschen Timing.

HTML

CSS

.drawn-border-btn {
  position: relative;
  padding: 1rem 2rem;
  background-color: #111;
  color: white;
  font-family: monospace;
  font-size: 16px;
  border: none;
  cursor: pointer;
  z-index: 0;
  overflow: hidden;
}

.drawn-border-btn span {
  position: absolute;
  background: #00feba;
  transition: all 0.25s ease;
}

/* Untere Linie */
.drawn-border-btn span:nth-child(1) {
  height: 2px;
  width: 0%;
  left: 0;
  bottom: 0;
}

/* Rechte Linie */
.drawn-border-btn span:nth-child(2) {
  width: 2px;
  height: 0%;
  right: 0;
  bottom: 0;
}

/* Obere Linie */
.drawn-border-btn span:nth-child(3) {
  height: 2px;
  width: 0%;
  right: 0;
  top: 0;
}

/* Linke Linie */
.drawn-border-btn span:nth-child(4) {
  width: 2px;
  height: 0%;
  left: 0;
  top: 0;
}

/* Hover-Animation in Reihenfolge */
.drawn-border-btn:hover span:nth-child(1) {
  width: 100%;
  transition-delay: 0s;
}

.drawn-border-btn:hover span:nth-child(2) {
  height: 100%;
  transition-delay: 0.25s;
}

.drawn-border-btn:hover span:nth-child(3) {
  width: 100%;
  transition-delay: 0.5s;
}

.drawn-border-btn:hover span:nth-child(4) {
  height: 100%;
  transition-delay: 0.75s;
}