bootstrap-default-tables.css

/* default tables to look like bootstrap's `.table.table-bordered`
   if no class is passed through (this is to allow users to insert tables
   with T4 and have them look like tables on the rest of the site). using
   the `:not([class])` selector to target tables without a class attribute
   and not affect global table styles for those using separate styles.
*/
table:not([class]) {
  border: 1px solid #dddddd;
  border-left: 0;
  border-collapse: separate;
  border-radius: 4px;
  border-spacing: 0;
  margin-bottom: 20px;
  max-width: 100%;
  min-width: 100%;
  text-indent: 0;
}

table:not([class]) td,
table:not([class]) th {
  border-left: 1px solid #dddddd;
  border-top: 1px solid #dddddd;
  line-height: 20px;
  padding: 8px;
}

table:not([class]) tr {
  display: table-row;
  vertical-align: inherit;
}

table:not([class]) tbody:first-child tr:first-child td:first-child,
table:not([class]) tr:first-child td:first-child {
  border-top-left-radius: 4px;
}

table:not([class]) tr:first-child td {
  border-top: 0;
}