A style attribute on an <h1>-<h6> tag assigns a unique style to the text header.
Its value is CSS that defines the appearance of the header element.
A style attribute on an <h3> element.
<h3 style="border-bottom:2px solid orangered;padding-bottom:5px;">
Practical HTML and CSS techniques.
</h3>
The style attribute specifies the style, i.e. look and feel, of the <<h1> to <h6> 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 <h1> to <h6> element only.
<h3 style="CSS-styles">
| Value | Description |
|---|---|
| CSS-styles | One or more CSS property/value pairs separated by semicolons (;). |
A style attribute on an <h3> element.
Clicking the button toggles the bottom border color.
<h3 id="myheading"
style="border-bottom:2px solid orangered;padding-bottom:5px;">
Advanced HTML and CSS techniques.
</h3>
<br />
<button onclick="toggle();">Toggle style</button>
<script>
let toggle = () => {
let element = document.getElementById("myheading");
if (element.style. borderColor === "black") {
element.style. borderColor = "orangered";
} else {
element.style. borderColor = "black";
}
}
</script>
The style attribute assigns a border color to the <h3> element.
Clicking the button calls JavaScript which toggles the border color.
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 |
Back to <h1 and h6>
