Per Google PageSpeed's recommendation, I inlined much of my CSS. Previously, I had minified all of my CSS through W3 Total Cache, but now I inlined much of my CSS, plus all of the CSS that controls Google Fonts. 

Now Google Fonts aren't appearing on mobile devices, but they do appear on desktops. Any reason why this is the case? The mobile screen cap here shows the fonts not loading.

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Condensed'),local(RobotoCondensed-Regular),url(https://fonts.gstatic.com/s/robotocondensed/v13/Zd2E9abXLFGSr9G3YK2MsNKDSU5nPdoBdru70FiVyb0.woff2) format("woff2");unicode-range:U+0100-024F,U+1E00-1EFF,U+20A0-20AB,U+20AD-20CF,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:400;src:local('Roboto Condensed'),local(RobotoCondensed-Regular),url(https://fonts.gstatic.com/s/robotocondensed/v13/Zd2E9abXLFGSr9G3YK2MsH4vxAoi6d67T_UKWi0EoHQ.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2212,U+2215,U+E0FF,U+EFFD,U+F000}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:700;src:local('Roboto Condensed Bold'),local(RobotoCondensed-Bold),url(https://fonts.gstatic.com/s/robotocondensed/v13/b9QBgL0iMZfDSpmcXcE8nBYyuMfI6pbvLqniwcbLofP2Ot9t5h1GRSTIE78Whtoh.woff2) format("woff2");unicode-range:U+0460-052F,U+20B4,U+2DE0-2DFF,U+A640-A69F}@font-face{font-family:'Roboto 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format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2212,U+2215,U+E0FF,U+EFFD,U+F000}&lt;/style&gt;


Can be seen here.


Question: Re- Wire a DAC for newer GPIO pin layout
Answer: The P5 header has the following pins supporting PCM (high quality audio).

P5-03 GPIO28 PCM_CLK
P5-04 GPIO29 PCM_FS
P5-05 GPIO30 PCM_DIN
P5-06 GPIO31 PCM_DOUT
(All set to mode ALT2)


Those gpios are not available on the A+/B+/Pi2

The A+/B+/Pi2 have the following pins supporting PCM.

Pin 12 GPIO18 PCM_CLK
Pin 35 GPIO19 PCM_FS
Pin 38 GPIO20 PCM_DIN
Pin 40 GPIO21 PCM_DOUT
(All set to mode ALT0)


You could certainly wire the Hifiberry to the new pins.  You could also set the gpios to be in mode ALT0 so that they transmit PCM.

The question is would your Hifiberry driver work on the A+/B+/Pi2.  I don't know.