Figure 3.11. Emulating mobile devices and network speeds using your desktop browserFirefox
InFirefox,theequivalentmodeisknownasresponsivedesignmode.It'sthesquare-
within-a-squareiconinthedevelopertoolspanelseeninFigure3.12.Figure 3.12. Look for the square-within-a-square icon to activate Firefox's responsive modeInresponsivemode,youcantogglebetweenportraitandlandscapeorientations,
simulatetouchevents,andcapturescreenshots,asshowninFigure3.13.104 CSS Master