HTML help!

Hello fellow artists! Hope you've had a productive summer. The Midwest was rather chilly, so instead of pool time I stayed indoors, rearranged my studio and got down to business. I just put up a fall blog header and buttons on my blog. Feedback is appreciated!

Does anyone have HTML experience? I am shaky, at best. My blog buttons are supposed to link up smoothly together but they have a white space between them. This is my code:






What needs to change? Thanks in advance!

-Lj

ETA: So, I'm noticing that my post shows the images and not the code, and the email shows the images with no space between them. But you'll see the problem on my blog. Argh!