.center {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 25px;
}

.center>* {
  flex: 0 0 auto;
}


.css-oijls1 {
  width: 300px;
  height: 300px;
  background-color: #1e1e1e;
  border-radius: 10px;
  margin: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
  /* smooth on hover */
  transition: all 0.3s ease;
  cursor: pointer;
}

.css-oijls1:hover {
  transform: scale(1.10);
  box-shadow: 0 0 20px rgba(0, 0, 0, 1);
  /* pulse effect */
  animation: pulse 1s infinite;
  z-index: 1000;
  text-decoration: none;
}

@keyframes pulse {
  0% {
    scale: 1;
  }

  50% {
    scale: 1.05;
  }

  100% {
    scale: 1;
  }
}

a:hover {
  text-decoration: none;
}