.myTooltip {
    padding: 10px;
    font-size: 1.2em;
    border-style: dashed;
    border-width: 3px;
    border-radius: 4px;
}

html, body, #app {
    width: 100%;
    height: 100%;
    overflow: hidden;
    padding: 0;
    margin: 0;
}