*{
  font-family: Arial, Helvetica, sans-serif;
}
.countdown{
  margin-top: -70px;   
    margin-right: 2px;
    margin-bottom: 2px;
    margin-left: 2px;
    text-align: center;
    display: inline-block;
  font-size: 4rem;
  padding: 0.2em 0.4em;
  background: #222;
  color: #fff;
  border-radius: 0.2em;
  transform-origin: center center;
  perspective: 800px;
  transition: transform 0.5s ease;
}

.countdownMini{
margin-top: 0%;
    text-align: center;
      display: inline-block;
  font-size: 2rem;
  padding: 0.1em 0.4em;
  background: #222;
  color: #fff;
  border-radius: 0.2em;
  transform-origin: center center;
    perspective: 800px;
  transition: transform 0.5s ease;
}

.setButton{
  text-align: center;
  font-size: 2rem;
  padding: 0.2em 0.4em;
  background: #222;
  color: #fff;
  border-radius: 0.2em;
  transform-origin: center center;
  transition: all 0.15s;
  cursor: pointer;

  position: absolute;
  top: 65%;
  left: 50%;
  transform: translate(-50%, -50%); 

}
.setButton:hover{
  font-size: 2.1rem;
}

.digit-container {
    height: 100vh; 
   display: flex;
  justify-content: center; 
  align-items: center;    
}
#popup{
text-align: center;
color: white;
font-size: 30px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%); 
width: 40vw;
height: 40vh;
background-color: #222;
border-radius: 30px;
display: none;
  z-index: 1001; 
  font-weight: bold;
}
#overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0,0,0,0.5); /* black with 50% opacity */
  display: none; /* hidden by default */
  z-index: 100;  /* behind the popup */
  transition: all 0.1s;
}
#datetime{
  text-align: center;
  width:70%;
    height:60px;
    font-size: 20px;
    border-radius: 20px;
}

body {

 margin: 0;
  height: 100vh; 
}