HTMLify

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", "Franklin Gothic Medium", "Arial Narrow", Arial,
    sans-serif;
}
body {
  background-color: #141414;
  color: #fff;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.btn {
  background-color: #fff;
  padding: 10px 20px;
  border-radius: 4px;
  border: none;
  font-weight: 700;
}
.btn:active {
  transform: scale(0.98);
}
#toasts {
  position: fixed;
  top: 1rem;
  right: 1rem;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}
.toast {
  position: relative;
  background-color: #666;
  padding: 0.5rem 1.5rem;
  border-radius: 4px;
  margin: 0.5rem;
  overflow: hidden;
}
.toast::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #b29dff;
  height: 2px;
  width: 100%;
  animation: notification 4s linear;
}
@keyframes notification {
  to {
    width: 0;
  }
}