body {
    margin: 0;
    padding: 0;
}

.flex-container {
    margin-top: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
}

canvas {
    width: 1000px;
    height: 700px;
    border: 7px solid #000000;
}

.buttons {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    margin-right: 5%;
    width: 400px;
    height: 700px;
    border: 7px solid #000000;
    background-color: #69a3f5;
}

.button {
    background-color: #3c994d;
    text-align: center;
    line-height: 120px;
    font-size: 35px;
    font-family: verdana;
    margin: auto;
    width: 275px;
    height: 120px;
    border: 2px solid yellow;
}

.button:hover {
    color: white;
    background-color: #267a36;
    cursor: pointer;
}