Visual Studio 2015 CSS shortcuts
Collapse all: ctrl m + a
Collapse current: ctrl m + s
Expand All: ctrl m + x
Expand Current: ctrl m + e
Formatting
Peeks at class or function: ALT+ F12
Format code: CTRL + e + d
Comment code : CTRL + (E, C) || CTRL + (K, C)
uncomment code : CTRL + (e, u) || CTRL + (k, u)
Surround code: CTRL + (k, s)
Make lowercase: CTRL + u
Make uppercase: CTRL + SHIFT + u
Fullscreen/exit fullscreen : ALT +SHIFT + ENTER
Window
ErrorList : Ctrl + W + E
Solution Explorer : Ctrl + W + S || Alt + Ctrl + L
Server Explore : Ctrl + W + L
Command Window : Ctrl + W + A
Resource Window : Ctrl + W + R
Tasks Window : Ctrl + W + T
Toolbox Window : Ctrl + W + X