a { transition-timing-function:  ease  }
b { transition-timing-function:  linear  }
c { transition-timing-function:  ease-in  }
d { transition-timing-function:  ease-out  }
e { transition-timing-function:  ease-in-out  }
f { transition-timing-function:  step-start  }
g { transition-timing-function:  step-end  }
h1 { transition-timing-function:  steps(10)  }
h2 { transition-timing-function:  steps(10, start)  }
h3 { transition-timing-function:  steps(10, end)  }
i { transition-timing-function:  cubic-bezier(0.2,0.0,0.4,1.0) }
j { transition-timing-function:  ease, linear, cubic-bezier(0.2,0.0,0.4,1.0)  }
k { transition-timing-function:  ease-in, steps(10, end), steps(10)  }
l { transition-timing-function:  steps(10, start), cubic-bezier(0.2,0.0,0.4,1.0), ease-out  }
m { transition-timing-function:  ease-in-out, step-end, step-end, step-start, steps(10), cubic-bezier(0.2,0.0,0.4,1.0), linear  }
y { transition-timing-function: initial }
z { transition-timing-function: inherit }