{"format":"python","content":"import altair as alt\n\nchart = (\n    alt.Chart(data)\n    .mark_point(size=20.0, fillOpacity=0.8)\n    .encode(\n    color='Origin:N',\n    x=alt.X('Horsepower:Q', axis={'title': 'Horsepower (Engine Power)', 'labelFontSize': 25}),\n    y=alt.Y('Miles_per_Gallon:Q', axis={'title': 'MPG (Fuel Efficiency)'})\n    )\n    .properties(\n    title={'text': 'watch me mangle a plot', 'subtitle': 'in this webpage'},\n    width=900,\n    height=400\n    )\n)\nchart"}