CSS Reference

Quick Reference

The outline-style property specifies the style of an outline drawn around an element.

div {
    outline-style: dotted;
}
This element (text) has a 5px red outline on all four sides, outside of the black border.

Default

Default valuenone
Inherited valuesno
Can it be animated?no

These are the allowed values.

ValueDescription
noneSpecifies no outline (default)
hiddenSpecifies a hidden outline
dottedSpecifies a dotted outline
dashedSpecifies a dashed outline
solidSpecifies a solid outline
doubleSpecifies a double outliner
grooveSpecifies a 3D grooved outline
ridgeSpecifies a 3D ridged outline
insetSpecifies a 3D inset outline
outsetSpecifies a 3D outset outline
initialSets this property to its default value
inheritInherits this property from its parent element

Using JavaScript

The HTML element can also be styled using JavaScript and the element’s id.

document.getElementById('my_div').style.outlineStyle = 'dotted';
<button onclick='my_function()'>Click Here</button>

<script>
function my_function() {
    document.getElementById('my_div').style.outlineStyle = 'dotted';
}
</script>

CSS Notes:


We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.