*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Courier New', Courier, monospace;
}
body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #060a1f;
}
#clock h3{
    position: relative;
    display: block;
    color: #fff;
    text-align: center;
    margin: 10px 0 ;
    font-weight: 700;
    letter-spacing: 0.4cm;
    font-size: 1.6em;
}
#clock #time{
    display: flex;
}
#clock #time div{
    position: relative;
    margin: 0px 10px;
    -moz-webkit-box-reflect: below 1px liner-gradient(transparent,#0004);
}
#clock #time span{
    position: relative;
    display: block;
    width: 200px;
    height: 160px;
    background:#2196f3;
    color: #fff;
    font-weight: 400;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 4em;
    z-index: 10;
    box-shadow: 0 0 0 1px rgba(0,0,0,.2);
}
#clock #time div span:nth-child(2){
    height: 30px;
    letter-spacing: 0.2em;
    font-weight: 500;
    font-size: 19px;
    z-index: 9;
    box-shadow: none;
    background:#127fd6 ;
    text-transform: uppercase;
}
#clock #time div:last-child span{
    background:#ff006a ;
}
#clock #time div:last-child span:nth-child(2){
    background:#ec0062 ;
}
@media (max-width:640px) {
    #clock h3{
        font-size: 0.8em;
    }
    #clock #time div{
        margin: 0px 5px;
    }
    #clock #time span{
        width: 100px;
        height: 80px;
        font-size: 3em;
    }
    #clock #time div span:nth-child(2){
        font-weight: 300;
        font-size: 12px;
    }
}