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Do you recommend any easier, "newb" friendly ways of accomplishing the same thing? I'd say my CSS experience is intermediate.
Basically, I'm looking to set up a tournament tree on a site that I manage. The problem is that, since we will have many tourneys with different numbers of participants each time, I don't want to confuse myself when having to make new trees.
If it was just the one tree, I would probably use the same method used on the Blizzard site, even though it would probably take me forever (i.e. several days) to actually fully understand it.
If the tree structure is going to be the same (the same number of boxes and arrows every time), I would suggest taking the time to understand the code and build a template. Then, as you change participants, you can copy the code of the previous tournament and just insert the new participants information. I would suggest building it using mostly CSS like Blizzard did. Yours may be easier to work with because you can use the whole page.
However, if your trees are going to be shifting the number of boxes etc. you may just want to make an image of the tree and players information. Keep in mind that this is not accessible and may be tedious to create every time.