[Chartjs]-Chartjs Legend Styling

You need to style your ul to remove the bullet points (and set the color) and you need to make your li inline. This should do this for you

.chart-legend ul {
    list-style: none;
    background: black;
    color: white;
}

.chart-legend li {
    display: inline-block;
}

Note that if you have additional CSS that targets the same elements you might need more specificity or style resets.

Fiddle – http://jsfiddle.net/bseccq9v/