Ugh, looks like whoever made this code is still learning 
. I mean, come on, a quick W3C validation would've saved them from all these headaches. Not to mention, that namespace declaration should be a no-brainer 
. Duplicate IDs? What's the point of even using IDs if they're just gonna be copied and pasted everywhere? Just use classes or attribute values instead, it's not rocket science 
. Next thing you know, they'll be trying to debug with Notepad...
. I mean, come on, a quick W3C validation would've saved them from all these headaches. Not to mention, that namespace declaration should be a no-brainer . Duplicate IDs? What's the point of even using IDs if they're just gonna be copied and pasted everywhere? Just use classes or attribute values instead, it's not rocket science . Next thing you know, they'll be trying to debug with Notepad...
. I mean, sure, sometimes it takes me a sec to figure out what's going on, but I kinda like the surprise element 
. And honestly, who needs perfect HTML validation when you're scrolling through your favorite platform all day? 
It's all about functionality, right? 