body {
      font-family: Arial, sans-serif;
      background-color: rgb(137, 191, 239);
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      height: 100vh;
    }

    h1 {
      font-size: 40px;
      color: rgb(7, 15, 107);
      margin-bottom: 30px;
      text-align: center;
    }

    button {
    color: white;
    background-color: rgb(7,15,107);
    border: none;
    font-size: 16px;
    cursor: pointer;
    margin-bottom: 10px;
    border-radius: 5px;
    margin-left:90%;
    min-width: 100px;
    min-height: 50px;
}

    button:hover {
      background-color: #347bf6;
    }

    label{
    font-family: serif;
    font-size:15px
}
    .container {
    display: grid;
    grid-template-areas:
    "slider slider content";
    grid-template-columns: 1fr 1fr 8fr;
    grid-template-rows: 5fr;
    gap: 3px;
    background-color: rgb(137, 191, 239);
    padding: 5px;
    }
    .container div {
    background-color: rgb(137, 191, 239);
    padding: 10px;
    }
    .container div.header {
    grid-area: header;
    text-align: center;
    }
    .container div.slider {
    grid-area: slider;
    }
    .container div.content {
    grid-area: content;
    }
    .container div.footer {
    grid-area: footer;
    text-align: center;  
    }
    canvas {
      border:1px solid rgb(21, 59, 249);
    }

    input[type=range][orient=vertical] {
        writing-mode: vertical-lr;
        direction: rtl;
        appearance: slider-vertical;
        width: 16px;
        height: 400px;
        vertical-align: bottom;
    }
    input[type=number]{
      max-width: 500px;
    }