@media only screen and (min-width:200px) and (max-width:300px) {
    .clock{
        width: 50px;
        height: 90px;
        line-height: 90px;
        background: black;
        color: aqua;
        border-radius: 10%;
        text-align: center;
        font-size: 4ch;
    }
    .clock:hover{
        background: rgb(255, 255, 255);
        color: rgb(255, 0, 111);
        transform: translateY(-10px);
    }
}

@media only screen and (min-width:300px) and (max-width:500px) {
    .clock{
        width: 85px;
        height: 120px;
        line-height: 120px;
        background: black;
        color: aqua;
        border-radius: 10%;
        text-align: center;
        font-size: 7ch;
    }
    .clock:hover{
        background: rgb(255, 255, 255);
        color: rgb(255, 0, 111);
        transform: translateY(-10px);
    }
}
@media only screen and (min-width:800px) and (max-width:900px) {
    .clock{
        width: 160px;
        height: 200px;
        line-height: 200px;
        background: black;
        color: aqua;
        border-radius: 10%;
        text-align: center;
        font-size: 12ch;
    }
    .clock:hover{
        background: rgb(255, 255, 255);
        color: rgb(255, 0, 111);
        transform: translateY(-10px);
    }
}
@media only screen and (min-width:900px) and (max-width:1100px) {
    .clock{
        width: 250px;
        height: 300px;
        line-height: 300px;
        background: black;
        color: aqua;
        border-radius: 10%;
        text-align: center;
        font-size: 19ch;
    }
    .clock:hover{
        background: rgb(255, 255, 255);
        color: rgb(255, 0, 111);
        transform: translateY(-10px);
    }
}