*{
    margin: 0;
    padding: 0;
}
body{
    background-color: darkgray;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
#main{
    background-color: white;
    display: grid;
    grid-template-columns: repeat(4,50px);
    width: 250px;
    height: 450px;
    border-radius: 20px;
    padding: 2%;
    gap: 10px;
    
}
input{
    grid-column: span 4;
    width: 80%;
    margin: auto;
    height: 20%;
    border-radius: 40px;
    padding: 8%;
    margin-top: 2%;
    margin-bottom: 1%;
    text-align: end;
    font-size: 3rem;

}
button{
    border-radius: 90px;
    gap: 20%;
    padding: 5%;
}
#equl{
    border-radius: 45%;
    gap: 20%;
    padding: 5%;
    width: 9vw; 
}