.center{
    width: fit-content;
    margin: auto;
}
body{
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    flex-direction: column;
    overflow-x: hidden;
    margin-top: 100px;
    margin-bottom: 300px;
}

input{
    width: 100%;
    align-items: center;
    align-content: center;
}

input.btn-large{
    font-size:  24px;
    font-family: sans-serif;
    margin: 8px;
    width : 100px;
    height: 100px;
    border-radius: 50%;
    background-color: white;
}

input.btn-op{
    font-size:  24px;
    font-family: sans-serif;
    margin: 8px;
    width : 100px;
    height: 100px;
    border-radius: 50%;
    background-color:#dfdfdf;
}

input.btn-eq{
    font-size:  24px;
    font-family: sans-serif;
    margin: 8px;
    width : 100px;
    height: 100px;
    border-radius: 50%;
    background-color: lightgreen;
}

input.btn-cl{
    font-size:  24px;
    font-family: sans-serif;
    margin: 8px;
    width : 100px;
    height: 100px;
    border-radius: 50%;
    background-color: lightcoral;
}

.disp{
    font-family: serif;
    width: 480px;
    align-self: center;
    font-size: 32px;
    text-align: right;
    border-radius: 15px;
    border-color: black;
    background-color: white;
    padding: 3px;
}

.lang-select{
    font-size: 18px;
    width: auto;
    align-items: center;
    padding: 15px;
}

input.range{
    width: 30vw;
    align-items: center;
}