.arduino_heading h1{font-size:1.7em;font-family:'PT Sans', arial, helvetica, sans-serif;color:#4f4f4f}.arduino_heading h2{font-size:1.5em;font-family:'PT Sans', arial, helvetica, sans-serif}.arduino_heading h3{font-size:1.3em;font-family:'PT Sans', arial, helvetica, sans-serif}.arduino_heading img{margin-bottom:.625rem;max-height:279px;text-align:center}@media print, screen and (min-width: 64em){.arduino_heading img{margin-left:4.0625rem}}@media print, screen and (min-width: 40em){.arduino_heading img{max-height:265px}}