I've been doing web development in Coda recently. It's a really fantastic app, however there are some very annoying quirks. When going through a list of 5 or 6 closing divs I'm trying to find the quickest way to match up the closing tag with it's partner.
Some other IDEs will highlight the brackets<>, others will display a line highlighter. I don't know if there's any way to enable a similar feature in Coda? I'm having to match up the indentations and check myself with Chrome Inspecter, which is a huge pain.
This is one feature Coda does not support. Other IDEs have had it forever, Dreamweaver comes to mind first. You can request the feature by emailing the guys over at Panic. They are VERY responsive to user requests in future updates. Their address is [email protected].
Otherwise, you can quickly copy paste the text over to TextWrangler (which does support the feature) and make sure all the tags are in order before uploading. I use it as my main HTML/PHP IDE. It's great for webdevs.