h1 {
    margin: 10px;
    text-align: center;
}

.flex-container {
    display: flex;
    flex-flow: row wrap;
    align-items: center;
}

.graph {
    margin: auto;
    margin-bottom: 20px;
    padding: 10px;
    border: 1px solid black;
    border-radius: 10px;
}

.graph:nth-child(1), .graph:nth-child(2) {
    margin-top: 25px;
}

.graph h2 {
    text-align: center;
}

.graph img {
    width: 640px;
}

#interactiveGraph {
    width: 640px;
    padding-right: 20px;
}

/* Slider of interactive graph*/

#ts_slider {
    width: 100%;
    margin: auto;
}

#ts_slider_label {
    margin: 20px;
    margin-left: 0;
}

/* interactive calculator stuff */

#interactiveOutput {
    width: 640px;
}

#interactiveOutput .sliders {
    width: 100%;
}

#interactiveOutput label {
    text-align: center;
}

#interactiveOutput input {
    display: block;
    width: 80%;
    margin-left: 50px;
}

#interactiveOutput .output {
    margin-top: 20px;
    margin-bottom: 10px;
    margin-left: 0;
    border-top: 1px solid black;
}
@media(max-width: 800px) {
    .graph {
        width: 80%;
    }
    .graph img, #interactiveGraph {
        width: 90%;
    }
    .graph h2 {
        font-size: 24px;
    }
    #ts_slider{
        width: 75%;
    }

    #interactiveOutput{
        width: 90%;
    }
}