in src/theme.js [406:419]
backgroundColor: hex2rgba('#ffe564', 0.3),
borderLeftColor: colors.note,
borderLeftWidth: 9,
borderLeftStyle: 'solid',
padding: '20px 45px 20px 26px',
marginBottom: 30,
marginTop: 20,
marginLeft: -30,
marginRight: -30,
[media.lessThan('small')]: {
marginLeft: -20,
marginRight: -20,
},