css - duplicate property values?

[alda.b]

In css, can an item be declared more than once? Example:

td.cat,td.catHead,td.catSides,td.catLeft,td.catRight,td.catBottom {
background-color:#0099CC;
border: #FFFFFF;
border-style: solid;
height: 28px;}

td.cat,td.catHead,td.catBottom {
height: 29px;
border-width: 0px 0px 0px 0px; }

The properties in the bottom example are in the first example. You'll notice there are 2 different height values. This doesn't seem right to me... how does it decide which one to use?

[Ian Glass]

It goes by the last one declared. :-)

~~Ian

[noddy]

It goes by the last one declared. :-)

~~Ian

but if you reverse the order you may keep the same propties but if their are conflicting properties it will use the last one. You could make up a new class for the differance.

What is it you are trying to change?

[alda.b]

but if you reverse the order you may keep the same propties but if their are conflicting properties it will use the last one. You could make up a new class for the differance.

What is it you are trying to change?

It's from phpBB's default css... looks like I've got a bit of cleaning up to do.
Thanks for the responses.

[htmlite]

if their are conflicting properties it will use the last one.

i agree.
thats the ticket in using css. c is cascading.
in the examples from the first post...
the first code sets that style to all of those elements probably being a common style they like.
the second code sets a bit more specific style on parts on some of the same elements.
if the same property is declared, such as the height in this case, then the newest value will be used. if a new property is declared, it will be "added on" to the current styles for the elements.
those two code snippits look fine to use. although they could have shortened the last line to...
border-width: 0px;

[alda.b]

Thanks, makes sense now.

[noddy]

Thanks, makes sense now.

thats what everyone is here for is to try make sense of things