style.css

body{
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  margin: 0;
  background: linear-gradient(to right, #2980b9, #6dd5fa, #ffffff);
}

#clockContainer{
  position: relative;
  width: 300px;
  height: 300px;
  border: 10px solid #fff;
  border-radius: 50%;
}
  
.hand{
  position: absolute;
  left: 50%;
  bottom: 50%;
  transform-origin: 50% 100%;
  transform: translateX(-50%) translateY(100%) rotate(0deg);
  transition: transform 0.5s cubic-bezier(0.4, 2.5, 0.4, 0.5);
  border-radius: 5px;
}
  
#hourHand{
  width: 8px;
  height: 60px;
  background-color: #333;
  margin-top: -60px;
  border-radius: 5px;
}
  
#minuteHand{
  width: 6px;
  height: 100px;
  background-color: #555;
  margin-top: -100px;
  border-radius: 5px;
}
  
#secondHand{
  width: 2px;
  height: 120px;
  background-color: #ff0000;
  margin-top: -120px;
}