html{font-family:Verdana;font-size:14px}fieldset{grid-template-columns:auto auto;place-items:baseline start;column-gap:1ex;margin-bottom:1em;display:grid}fieldset button{margin-top:1em}button.checked{color:#fff;background-color:#00f}.collayout{flex-flow:column;display:flex}.rowlayout{flex-flow:wrap;gap:1ex;padding-top:1ex;padding-bottom:1ex;display:flex}.span2cells{grid-column:span 2}.colorbutton{outline:1px solid #000;width:5em;height:3em}canvas{aspect-ratio:1;height:auto}