A style attribute on a <main> tag assigns a unique style to the main element.
Its value is CSS that defines the appearance of the main element.
A style attribute on a <main> element.
<main style="max-width: 400px; background:#f6f8ff; padding:25px;">
<b>Impressionism</b> is a 19th-century art movement
characterized by relatively small brush strokes,
emphasis on accurate depiction of light, ordinary
subject matter, and unusual visual angles.
Impressionism originated with a group of
Paris-based artists whose independent exhibitions
brought them to prominence in the 1870s and 1880s.
</main>
The style attribute specifies the style, i.e. look and feel, of the <main> 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 <main> element only.
<main style="CSS-styles">
| Value | Description |
|---|---|
| CSS-styles | One or more CSS property/value pairs separated by semicolons (;). |
A style attribute on a <main> element.
Clicking the button toggles the max width value.
<main id="mymain"
style="max-width: 400px;background:#f6f8ff; padding:25px;">
<b>Impressionism</b> is a 19th-century art movement
characterized by relatively small brush strokes,
emphasis on accurate depiction of light, ordinary
subject matter, and unusual visual angles.
Impressionism originated with a group of
Paris-based artists whose independent exhibitions
brought them to prominence in the 1870s and 1880s.
</main>
<br />
<button onclick="toggle();">Toggle style</button>
<script>
let toggle = () => {
let element = document.getElementById("mymain");
if (element.style.maxWidth === "400px") {
element.style.maxWidth = "100%";
} else {
element.style.maxWidth = "400px";
}
}
</script>
The style attribute sets the <main> element maximum width.
Clicking the button calls JavaScript which changes the maximum width.
Here is when style support started for each browser:
 Chrome
|
6.0 | Sep 2010 |
 Firefox
|
4.0 | Mar 2011 |
 IE/Edge
|
12.0 | Jul 2015 |
 Opera
|
11.1 | Mar 2011 |
 Safari
|
5.0 | Jun 2010 |
Back to <main>
