body{
    font-family: Arial;
    height: 100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    background: linear-gradient(to right, #5f9cff, #a66cff);
}

.converter-container{
    background:white;
    padding:20px;
    border-radius:10px;
    text-align:center;
}

input, select, button{
    padding:8px;
    border-radius:5px;
    border:1px solid gray;
}

button{
    background:#5f9cff;
    color:white;
    border:none;
}

button:hover{
    background:#4a7de0;
}