vtvt_demo_styles.css

.canvas-wrapper {
    display: block;
    position: relative;
    margin-top: 1rem;
    margin-bottom: 1rem; }
  
.canvas-wrapped {
    display: block;
    position: relative;
    margin-left: auto;
    margin-right: auto; }
    @media screen and (max-width: 42em) {
      .canvas-wrapped {
        width: 90vmin;
        height: 90vmin; } }
    @media screen and (min-width: 42em) and (max-width: 64em) {
      .canvas-wrapped {
        width: 75vmin;
        height: 75vmin; } }
    @media screen and (min-width: 64em) {
      .canvas-wrapped {
        width: 65vmin;
        height: 65vmin; } }
h3 {
    text-align: center;
    margin-bottom: 1rem; 
}

p {
    text-align: center;
    margin-bottom: 1rem; 
}

button {
    display: block;
    position: relative;
    margin-left:auto;
    margin-right:auto;
    background-color: #FCFFFC; 
    color: black; 
    border: 2px solid #449980; 
    border-radius: 5px; 
    padding: 4px 4px;
}

button:hover {
    background-color: #F9FFFA; 
}

button:focus {
  outline: none;
}