CSS Tables Tutorial with Examples

Table borders
Collapsed Table borders
CSS Table Width/Height

1. Table borders

No ADS

Basically, a table has 2 types of border that is table border and cell borders. It is similar to the following illustration:

CSS Border

By default, adjacent cells do not use the same border. They have separate borders. And the table borders are also separate from the cell borders.

css-table-example.html

<!DOCTYPE html>
<html>
<head>
    <title>CSS Table Border</title>
    <meta charset="UTF-8"/>
    <style>
        .table1  {
           border: 1px solid red;
        }
        .table1 th {
           border: 1px solid blue;
           padding: 5px;
        }
        .table1 td {
           border: 1px dashed green;
           padding: 5px;
        }
    </style>
</head>
<body>
    <h3>HTML Table Boder</h3>
    <table class="table1">
        <tr>
           <th>First Name</th>
           <th>Last Name</th>
        </tr>
        <tr>
           <td>John</td>
           <td>Smith</td>
        </tr>
    </table>
</body>
</html>

border-spacing

CSS border-spacing applies to <table> to specify the distance between the borders of adjacent cells.

/* <length> */
border-spacing: 2px;
/* horizontal <length> | vertical <length> */
border-spacing: 1cm 2em;
/* Global values */
border-spacing: inherit;
border-spacing: initial;
border-spacing: unset;

border-spacing-example.html

<!DOCTYPE html>
<html>
<head>
    <title>CSS Table Border</title>
    <meta charset="UTF-8"/>
    <style>
        .table1  {
           border: 1px solid red;
           border-spacing: 40px;
        }
        .table1 th {
           border: 1px solid blue;
           padding: 25px;
        }
        .table1 td {
           border: 1px dashed green;
           padding: 25px;
        }
    </style>
</head>
<body>
    <h3>HTML Table Boder-spacing</h3>
    <table class="table1">
        <tr>
           <th>First Name</th>
           <th>Last Name</th>
        </tr>
        <tr>
           <td>John</td>
           <td>Smith</td>
        </tr>
    </table>
</body>
</html>

Another example with CSS border-spacing:

table {
  border-spacing: 1em .5em;
  padding: 0 2em 1em 0;
  border: 1px solid orange;
}
td {
  width: 1.5em;
  height: 1.5em;
  background: #d2d2d2;
  text-align: center;
  vertical-align: middle;
}

<table>
    <tr>
      <td>1</td><td>2</td><td>3</td>
    </tr>
    <tr>
      <td>4</td><td>5</td><td>6</td>
    </tr>
    <tr>
      <td>7</td><td>8</td><td>9</td>
    </tr>
</table>

2. Collapsed Table borders

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Use CSS border-collapse:collapse for the table, if you want that adjacent cells share a border, and share a border with the table. The default value of CSS border-collapse is separate.

table   {
   border-collapse: collapse;
   border: 1px solid black;
} 
table  th {
   border: 1px solid black;
   padding: 5px;
}
table  td {
   border: 1px solid black;
   padding: 5px;
}

Because each cell can use a different border style. Thus, for collapsed tables conflict situations will occur because 2 adjacent cells will share a border. The question herein is which border style will be used in conflict case?

If borders have the same width, the priority order will be:

hidden
double
solid
dashed
dotted
ridge
outset
groove
inset
none

Note: CSS border-style:none and CSS border-style:hidden are the same. They make a element borderless. They are different only when applying to a collapsed table. When resolving conflicts CSS border-style:hidden has the highest priority, while CSS border-style:none has the lowest priority.

css-collapse-table-example2.html

<!DOCTYPE html>
<html>
<head>
    <title>CSS Collapsed Table</title>
    <meta charset="UTF-8"/>
    <style>
        table   {
           border-collapse: collapse;
           border: 1px solid black;
        }
        th, td {
           padding: 10px;
        }
    </style>
</head>
<body>
    <h3>CSS Collapsed Table</h3>
    <table>
        <tr>
           <th style="border-style:solid;border-width:1px;border-color:blue;">
              border-style:solid;<br/>
              border-width:1px;<br/>
              border-color:blue;
           </th>
           <th style="border-style:dashed;border-width:1px;border-color:red;">
              border-style:dashed;<br/>
              border-width:1px;<br/>
              border-color:red;
           </th>
        </tr>
        <tr>
           <td style="border-style:hidden;border-width:1px;border-color:green;">
              border-style:hidden;<br/>
              border-width:1px;<br/>
              border-color:green;
           </td>
           <td style="border-style:none;border-width:1px;border-color:green;">
              border-style:none;<br/>
              border-width:1px;<br/>
              border-color:green;
           </td>
        </tr>
    </table>
</body>
</html>

3. CSS Table Width/Height

The CSS width, CSS height property is used for establishing width and height for a table, or a row or a column.

Note: Some browsers only consider <thead>, <tbody>, <tfoot> as containers, therefore, CSS height doesn't work when you apply it to these elements. If you want to set up the height for a table row you need to apply CSS height to <th> or <td>.

table {
   width: 100%;
   border-collapse: collapse;
   border: 1px solid black;
}
th {
   height: 50px;
   border: 1px solid black;
}
td {
   border: 1px solid black;
}

In a table with multiple columns, the columns are numbered 1, 2, ... Use CSS th:nth-child(N) to apply styles to the Nth column of the table.

For example: A table with 3 columns, establish width:40% for 2 first columns and width:20% for the 3rd column.

table {
   width: 100%;
   border-collapse: collapse;
   border: 1px solid black;
}
th:th:nth-child(1), th:th:nth-child(2) {
   width: 40%;
}
th:th:nth-child(3) {
   width: 20%;
}
th, td {
   border: 1px solid black;
}

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CSS Tables Tutorial with Examples

1. Table borders

2. Collapsed Table borders

3. CSS Table Width/Height

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