style.css

#main {
    margin-top: 75px;
    font-family: 'Montserrat', sans-serif;
    font-size: 20px;
    text-align:center;
}

#setSizeSlider {
    -webkit-appearance: none;
    width: 200px;
    height: 15px;
    border-radius: 5px; 
    background: #e2dfdf;
    outline: none;
    opacity: 0.6;
    -webkit-transition: .2s;
    transition: opacity .2s;
}
#setSizeSlider:hover {
    opacity: 1; /* Fully shown on mouse-over */
}

#setSizeSlider::-webkit-slider-thumb {
    -webkit-appearance: none; /* Override default look */
    appearance: none;
    width: 25px; /* Set a specific slider handle width */
    height: 25px; /* Slider handle height */
    border-radius: 50%;
    background: #93b6f0; /* Green background */
    cursor: pointer; /* Cursor on hover */
}

#canvas {
    text-align: center;
}

button {
    background-color: #e2dfdf;
    border: none;
    color: black;
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-size: 20px;
    margin-bottom: 50px;
    padding: 5px 10px;
    border-radius: 4px;
    opacity: 0.6;
}