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![Preston Skaggs](https://uploads.teamtreehouse.com/production/profile-photos/1702112/micro_DSC_0058.jpg)
Preston Skaggs
11,818 PointsCSS Stage-11 Transitions and Transforms quiz answer incorrect?
The question is "Which property can we use to increase or slow down the transition speed in its duration?". The answer it accepts is "transition-timing-function", but shouldn't it be "transition-duration"?
![Preston Skaggs](https://uploads.teamtreehouse.com/production/profile-photos/1702112/micro_DSC_0058.jpg)
Preston Skaggs
11,818 PointsThanks Christopher,
I still think the answer should be transition-duration or they should reword the question. The transition-timing-function property affects the acceleration and deceleration of the transition by adjusting the acceleration curve. The transition-duration controls the duration of the effect or the speed at which it happens.
2 Answers
![Gari Merrifield](https://secure.gravatar.com/avatar/b51a1abeab61bce0d4eb75e966c5dc7a?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Gari Merrifield
9,597 PointsI agree with Preston here, the wording of the question is confusing. Nothing about the curve is mentioned, seemingly leaving the question open for a bit of interpretation.
![Ken Alger](https://secure.gravatar.com/avatar/cf2cad7e6e37acacfa5201068856ed3d?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
Ken Alger
Treehouse TeacherPreston;
You can read all about CSS transitions on the MDN site on that topic. Great detailed information.
Happy coding,
Ken
Christopher Burge
4,964 PointsChristopher Burge
4,964 PointsHi Preston,
Treehouse is correct. The transition-timing-function controls the speed curve during a certain transition effect duration, whereas the transition-duration specifies how long it takes for the transition effect to complete.
Hope this helps. Happy Coding!
Chris