#container-countdown {
    display: flex;
    justify-content: center;
  }
  
  #countdown {
    font-size: 60px;
    margin-top: 100px;
    background: linear-gradient(to right, #e9f7c3, #f0f3f5); 
    border-radius: 20px;
    padding: 30px;
  }
  
  #header-cont {
    display: flex;
    justify-content: center;
  }
  
  video {
    position: fixed;
    right: 0;
    bottom: 0;
    min-width: 100%;
    min-height: 100%;
    z-index: -10;
  }
  
  #buttonNatureAudio, #buttonNatureVideo{
    display: flex;
    margin: 0 auto;
    font-size: 20px;
    background: linear-gradient(to right, #e9f7c3, #f0f3f5); 
    border-radius: 20px;
    padding: 15px;
    border-style: none;
  } 

  #buttonNatureVideo{
    display: none;
  } 
 
 #btn, a{
    display: flex;
    margin: 0 auto;
    font-size: 15px;
    background: linear-gradient(to right, #e9f7c3, #f0f3f5); 
    border-radius: 10px;
    padding: 5px;
    border-style: none;
    text-decoration: none;
    color: black;
  } 

  @media all and (max-width: 500px) {
    
body {
 background: linear-gradient(to right, #e9f7c3, #f0f3f5); 
}


 #container-countdown {
  display: flex;
  justify-content: center;
}

#countdown {
  font-size: 60px;
  margin-top: 100px;
  background: linear-gradient(to right, #e9f7c3, #f0f3f5); 
  border-radius: 20px;
  padding: 30px;
}

#header-cont {
  display: flex;
  justify-content: center;
}

video {
  position: fixed;
  right: 0;
  bottom: 0;
  min-width: 100%;
  min-height: 100%;
  z-index: -10;
}
 
  #myVideo {
    width: 300px;
    height: 300px;
  }
  #buttonNatureVideo, #buttonNatureAudio{
  display: block;
  padding: 10px;
  background: linear-gradient(to right, #e9f7c3, #f0f3f5);
    border-radius: 20px;
}

 #btn{
    margin-top: 140px;
  } 

  }