Underline Slide

.btn-underline-slide {
  position: relative;
  display: inline-block;
  padding: 12px 8px;
  border: none;
  background: transparent;
  color: #e2e8f0;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
.btn-underline-slide::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 100%;
  height: 2px;
  background: #38bdf8;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}
.btn-underline-slide:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}