Fixing Table Spacing

The tables box sizing needs to be adjusted for the many themes (anything using twitter bootstrap) out there using box-sizing:border-box

table.gridtable th {
  -webkit-box-sizing: content-box;
  -moz-box-sizing: content-box;
  box-sizing: content-box;
}

Also, this isn’t necessary, but to center it all on the page I used this:

div#content-wrapper {
  margin: 0 auto;
  display: table;
}

https://wordpress.org/plugins/bracketpress/