body {
    font-family: Helvetica, Arial, sans-serif;
    font-size: 24px;
}
.row {
    margin-bottom: 5px;
    height: 36px;

}
#container {
    max-width: 520px;

}
.variable, #cost {
    display: inline-block;
    font-size: 42px;
    font-weight: bold;
}
.variable {
    cursor: pointer;
    border-bottom: dotted #666 1px;
}
#graphWrapper {
    height: 400px;
    position: relative;
    width: 500px;
}
#graphTop {
    position: absolute;
    left: 50px;
    background-color: black;
    width: 25px;
    height: 200px;
    border: solid 1px black;
    bottom: 100px;
}
#graphBottom {
    width: 25px;
    border: solid 1px black;
    height: 40px;
    left: 50px;
    position: absolute;
    bottom: 60px;
}
#topLabel {
    left: 90px;
    bottom: 110px;
    font-size: 14px;
    position: absolute;
}
#bottomLabel {
    left: 90px;
    bottom: 76px;
    font-size: 14px;
    position: absolute;
}
#rightLabel {
    bottom: 110px;
    font-size: 14px;
    position: absolute;
    right: 10px;

}
#ground {
    bottom: 100px;
    position: absolute;
    width: 100%;
    height: 1px;
    background-color: white;
    border-top: dotted 1px black;

}