*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    
}
h1{
    font-size: 55px;
    font-family: 'Space Mono',monospace;
}
.container{
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    width: 100%;
    border: none;
    background-image: url('back.jpg');
    background-repeat: no-repeat;
    background-size: 100% 100%;
    color: white;
    text-align: center;
}
.box{
    display: flex;
    flex-direction: column;
    justify-content: space-around;    
    border: 1px solid red;
    width: 580px;
    height:580px;
    border-radius: 1.5em;
    background-color: rgba(128,128,128,0.5);    
    margin: 0 auto;
    
  
}
.watch{
    border: none;
    margin-bottom: 1em;
    width: 100%;
    height: 150px;
    display: grid;
    place-items:center;
    overflow: hidden;
    
}
.watch-diplay{
    border: none;
    height:70px;
    width:450px;
    margin-bottom:1em;
    
    
}
.controller{
    border: none;
    width: 100%;
    height: 100px;
    text-align: center;
    padding: 1em;
}
button{
    padding: 1em 3em;
    border-radius: .5em;    
    align-items: center;
    border: none;
    font-size: 17px;
    margin-right: .5em;
    box-shadow: 1px 2px 3px whitesmoke;
    color: white;
    background-color: rgba(128,128,128,0.5);
    font-family: 'Space Mono',monospace;
}
span{
    color:white;
    font-size: 65px;
    border-left: 1px solid white;  
    font-family: 'Space Mono',monospace;
}
span:first-child{
    border-left: none;
}
.border
{   margin: 1em;
    border: 1px solid white; 
}

button:hover{
   
   background:linear-gradient(45deg,#ff000a,#000000e2,#ff000a);
    color: white;
    border: 1px solid white;
}
@media(max-width: 768px){
  h1{
      font-size: 35px;
  }
   .container{
       width: 100%;
       height: 100vh;
       background-size: 100% 100%;
   }
   .box{
       width: 310px;
       height: 300px;   
       overflow: hidden; 
       z-index: 999;          
   }
   .watch{
      width: 100%;
      height: 150px;        
      display: block;
                   
   }
   .watch-display{
       width: 100px;
       height: 100px;   
       margin-bottom:1em;
    }
   span{
       font-size: 40px;
   }
   
   .contoller
   {
       height: 70px;
   }
   button{
       padding: 1em 1em;
       font-size: 15px;
      
   }
}