.container h1 {
    text-align: center;
    padding-top: 3em;
    font-size: 70px;
}

.container .buttons button {
    background-color: whitesmoke;
    border: none;
    padding: .8em 2em;
    margin: 2em 1em;
    border-radius: .2em;
}

#canvas-image-blending {
    position: absolute;
    display: block;
    width: 100%;
    height: 100%;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    z-index: -999;
}