A style attribute on a <th> tag assigns a unique style to the table header.
Its value is CSS that defines the appearance of the th element.
A style attribute on a <th> element.
Customers | |
---|---|
Denice | Hobermann |
Paulo | Cornell |
<style>
table.tb { width: 250px; border-collapse: collapse; }
.tb th, .tb td { border: solid 1px #777; padding: 5px; }
</style>
<table class="tb">
<tr>
<th style="background-color:lightblue;" colspan="2">Customers</th>
</tr>
<tr>
<td>Denice</td>
<td>Hobermann</td>
</tr>
<tr>
<td>Paulo</td>
<td>Cornell</td>
</tr>
</table>
The style attribute specifies the style, i.e. look and feel, of the <th> element.
A style contains any number of CSS property/value pairs, separated by semicolons (;).
The style attribute overrides any other style that was defined in a <style> tag or an external CSS file.
This inline styling affects the current <th> element only.
<th style="CSS-styles">
Value | Description |
---|---|
CSS-styles | One or more CSS property/value pairs separated by semicolons (;). |
A style attribute on a <th> element.
Clicking the button toggles the table header cell to dark mode.
Customers | |
---|---|
Denice | Hobermann |
Paulo | Cornell |
<style>
table.tbl { width: 250px; border-collapse: collapse; }
.tbl th, .tbl td { border: solid 1px #777; padding: 5px; }
</style>
<table class="tbl">
<tr>
<th id="myth" style="background-color:lightblue;" colspan="2">Customers</th>
</tr>
<tr>
<td>Denice</td>
<td>Hobermann</td>
</tr>
<tr>
<td>Paulo</td>
<td>Cornell</td>
</tr>
</table>
<br />
<button onclick="toggle();">Toggle style</button>
<script>
let toggle = () => {
let element = document.getElementById("myth");
if (element.style.backgroundColor === "lightblue") {
element.style.backgroundColor = "#222";
element.style.color = "#fff";
} else {
element.style.backgroundColor = "lightblue";
element.style.color = "#222";
}
}
</script>
The style attribute assigns a background to the <th> element.
Clicking the button calls JavaScript which toggles the background and text colors to another value.
Here is when style support started for each browser:
![]() Chrome
|
1.0 | Sep 2008 |
![]() Firefox
|
1.0 | Sep 2002 |
![]() IE/Edge
|
1.0 | Aug 1995 |
![]() Opera
|
1.0 | Jan 2006 |
![]() Safari
|
1.0 | Jan 2003 |
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