body {
    font-family: arial, sans-serif;
}

h1 {
    text-align: center;
}

form {
    background-color: rgb(206, 232, 255);
    padding: 20px;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;

}

.pakollinen {
    color: red;
}
.levee {
    font-family: inherit;
    font-size: inherit;
    padding: 0.2em;
    width: 100%;
    box-sizing: border-box;
}

.nappi {
    background-color: rgb(58, 143, 255);
    color: white;
    width: 100%;
    padding: 0.5em 1em;
    border-width: 5px;
    border: none;
    font-size: 1em;
    font-weight: bold;
    letter-spacing: 1px;
    box-shadow: 3px 3px 0px rgba(0, 0, 0, 0.151);
    border-radius: 3px;
}

.nappi:hover {
    background-color: rgb(53, 128, 224);
}

.nappi:active {
    position: relative;
    top: 3px;
    left: 3px;
    box-shadow: none;
}

.nappi:first-child {
    margin-bottom: 1em;
}

.nappi:last-child {
    margin-top: 1em;
}

.numero {
    font-size: 1.5em;
    width: 3em;
    text-align: right;
}

table {
    width: 100%;
}

table input {
    width: 100%;
}

.vasen, .keski, .oikea {
    width: 33%;
}

.keski {
    text-align: center;
}

.oikea {
    text-align: right;
}