Grid item vertical alignment

[tealwp]

The columnar alignment of the custom gridBlock css classes/styling is off.

I'm unable to commit code, but the fix is small. Remove the following css styling from css/main.css:

.gridBlock>:first-child{margin-left:0}
.gridBlock>:last-child{margin-right:0}

before:

after:

This bug is also present in other uses of the gridBlock, but was more noticeable in the UI for the Features page