Bootstrap/less/tables.less

//
// Tables
// --------------------------------------------------


table {
  max-width: 100%;
  background-color: @table-background;
  border-collapse: collapse;
  border-spacing: 0;
}
th {
  text-align: left;
}


// BASELINE STYLES
// ---------------

.table {
  width: 100%;
  margin-bottom: @line-height-base;
  // Cells
  th,
  td {
    padding: 8px;
    line-height: @line-height-base;
    vertical-align: top;
    border-top: 1px solid @table-border;
  }
  // Bottom align for column headings
  thead th {
    vertical-align: bottom;
  }
  // Remove top border from thead by default
  caption + thead tr:first-child th,
  caption + thead tr:first-child td,
  colgroup + thead tr:first-child th,
  colgroup + thead tr:first-child td,
  thead:first-child tr:first-child th,
  thead:first-child tr:first-child td {
    border-top: 0;
  }
  // Account for multiple tbody instances
  tbody + tbody {
    border-top: 2px solid @table-border;
  }

  // Nesting
  .table {
    background-color: @body-background;
  }
}



// CONDENSED TABLE W/ HALF PADDING
// -------------------------------

.table-condensed {
  th,
  td {
    padding: 4px 5px;
  }
}



// BORDERED VERSION
// ----------------

.table-bordered {
  border: 1px solid @table-border;
  border-collapse: separate; // Done so we can round those corners!
  border-left: 0;
  border-radius: @border-radius-base;
  th,
  td {
    border-left: 1px solid @table-border;
  }
  // Prevent a double border
  caption + thead tr:first-child th,
  caption + tbody tr:first-child th,
  caption + tbody tr:first-child td,
  colgroup + thead tr:first-child th,
  colgroup + tbody tr:first-child th,
  colgroup + tbody tr:first-child td,
  thead:first-child tr:first-child th,
  tbody:first-child tr:first-child th,
  tbody:first-child tr:first-child td {
    border-top: 0;
  }
  // For first th/td in the first row in the first thead or tbody
  thead:first-child tr:first-child > th:first-child,
  tbody:first-child tr:first-child > td:first-child,
  tbody:first-child tr:first-child > th:first-child {
    border-top-left-radius: @border-radius-base;
  }
  // For last th/td in the first row in the first thead or tbody
  thead:first-child tr:first-child > th:last-child,
  tbody:first-child tr:first-child > td:last-child,
  tbody:first-child tr:first-child > th:last-child {
    border-top-right-radius: @border-radius-base;
  }
  // For first th/td (can be either) in the last row in the last thead, tbody, and tfoot
  thead:last-child tr:last-child > th:first-child,
  tbody:last-child tr:last-child > td:first-child,
  tbody:last-child tr:last-child > th:first-child,
  tfoot:last-child tr:last-child > td:first-child,
  tfoot:last-child tr:last-child > th:first-child {
    border-bottom-left-radius: @border-radius-base;
  }
  // For last th/td (can be either) in the last row in the last thead, tbody, and tfoot
  thead:last-child tr:last-child > th:last-child,
  tbody:last-child tr:last-child > td:last-child,
  tbody:last-child tr:last-child > th:last-child,
  tfoot:last-child tr:last-child > td:last-child,
  tfoot:last-child tr:last-child > th:last-child {
    border-bottom-right-radius: @border-radius-base;
  }

  // Clear border-radius for first and last td in the last row in the last tbody for table with tfoot
  tfoot + tbody:last-child tr:last-child > td:first-child {
    border-bottom-left-radius: 0;
  }
  tfoot + tbody:last-child tr:last-child > td:last-child {
    border-bottom-right-radius: 0;
  }

  // Special fixes to round the left border on the first td/th
  caption + thead tr:first-child th:first-child,
  caption + tbody tr:first-child td:first-child,
  colgroup + thead tr:first-child th:first-child,
  colgroup + tbody tr:first-child td:first-child {
    border-top-left-radius: @border-radius-base;
  }
  caption + thead tr:first-child th:last-child,
  caption + tbody tr:first-child td:last-child,
  colgroup + thead tr:first-child th:last-child,
  colgroup + tbody tr:first-child td:last-child {
    border-top-right-radius: @border-radius-base;
  }

}



// ZEBRA-STRIPING
// --------------

// Default zebra-stripe styles (alternating gray and transparent backgrounds)
.table-striped {
  tbody {
    > tr:nth-child(odd) > td,
    > tr:nth-child(odd) > th {
      background-color: @table-background-accent;
    }
  }
}



// HOVER EFFECT
// ------------
// Placed here since it has to come after the potential zebra striping
.table-hover {
  tbody {
    tr:hover > td,
    tr:hover > th {
      background-color: @table-background-hover;
    }
  }
}



// TABLE CELL SIZING
// -----------------

// Reset default grid behavior
table td[class*="span"],
table th[class*="span"] {
  display: table-cell;
  float: none; // undo default grid column styles
  margin-left: 0; // undo default grid column styles
}

// TABLE BACKGROUNDS
// -----------------
// Exact selectors below required to override .table-striped

.table tbody tr {
  &.success > td {
    background-color: @state-success-background;
  }
  &.error > td {
    background-color: @state-error-background;
  }
  &.warning > td {
    background-color: @state-warning-background;
  }
}

// Hover states for .table-hover
.table-hover tbody tr {
  &.success:hover > td {
    background-color: darken(@state-success-background, 5%);
  }
  &.error:hover > td {
    background-color: darken(@state-error-background, 5%);
  }
  &.warning:hover > td {
    background-color: darken(@state-warning-background, 5%);
  }
}