Not getting a smooth transition using CSS3 transition property

Hi!
I'm trying to have a header & logo minimize on scroll using jQuery and CSS3. This is occurring at min-width = 960px
I've got the minimizing working, but the CSS transition doesn't seem to be working.

It should work like this demo:

http://callmenick.com/tutorial-demos/resize-header-on-scroll/

Anyone see where I've bungled the code?

http://sandbox.intrepidrealist.com/lucidity-2015/blog/

Thanks!
LVL 9
Alicia St RoseOwner & Principle Developer/DesignerAsked:
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Kyle HamiltonData ScientistCommented:
You have to specify the initial height in pixels. height auto wont work. you also need the transition property:

img {
height: 135px;
max-width: 100%;
transition: all .5s;
}

(remember to add vendor prefixes if you are targeting a variety of browsers)
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Alicia St RoseOwner & Principle Developer/DesignerAuthor Commented:
Kyle,
Thank you so much. Not only for a working solution, but also for helping shed more light on how these transition properties work!
I learned sumptin!
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