How to change value of class in another class?

[eyJude]

Here's some code:\[code\]<div id="one"> <div id="two"> <div class="cell_pad"> </div> </div></div>\[/code\]How to tell to css, that \[code\]you have to change value of class "cell_pad" which is in id="one"\[/code\]?.cell_pad is repeated a few times in code, but I've to change \[code\]one occurence of this class.\[/code\]I'm using \[code\]sparky framework\[/code\] for joomla.I've tried like that in my stylesheet, but it doesn't effect:\[code\]#one > .cell_pad{}\[/code\]