#figura {
    width: fit-content;
    margin-left:auto;
    margin-right: auto;
    margin-top: 3%;
}
#figura input {
    width: 200px;
    font-size: 140%;
    height: 50px;
    font-weight: bold;
    border-radius: 20px;
}
.wynik {
    float: left;
    font-size: 150%;
    color:navy;
    margin: 40px 50px;
    font-weight: bold;
}
fieldset {
    margin-top:8%;
    margin-left:10%;
    width: fit-content;
    padding: 20px 60px;   
    line-height: 2em;
    font-size:200%;
    background: linear-gradient(to left,red,gold);
}
fieldset input {
    width: 4em;
}
legend {
    font-weight: bold;
}
fieldset input[type="submit"] {
    width: 6em;
    font-size: 0.6em;
}