The text-stroke property

The text-stroke property sets the color and thickness of text character outlines. As a value, the property should be given the outline thickness and the outline color separated by a space.

Syntax

selector {
	text-stroke: outline thickness and color;
}

Basic example

Simple text outline:

<div class="stroked-text">
	Lorem ipsum dolor sit amet
</div>

.stroked-text {
	font-size: 48px;
	font-weight: bold;
	-webkit-text-stroke: 2px red;
	text-stroke: 2px red;
}

Outline only

Now let's make the text color match the background color (white in our case). As a result, only the outline will remain:

<div class="stroked-text">
	Lorem ipsum dolor sit amet
</div>

.stroked-text {
	font-size: 48px;
	font-weight: bold;
	color: white;
	-webkit-text-stroke: 2px black;
	text-stroke: 2px black;
}

Gradient outline

Let's create a gradient outline using the background-clip property:

<div class="gradient-stroke">
	Lorem ipsum dolor sit amet
</div>

.gradient-stroke {
	font-size: 42px;
	font-weight: bold;
	background: linear-gradient(to right, #ff8a00, #e52e71);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
	-webkit-text-stroke: 1px #333;
	text-stroke: 1px #333;
}

Multiple outline

Double outline effect using text-shadow:

<div class="double-stroke">
	Lorem ipsum dolor sit amet
</div>

.double-stroke {
	font-size: 40px;
	color: white;
	-webkit-text-stroke: 3px #000;
	text-stroke: 3px #000;
	text-shadow: 
		0 0 5px #000,
		0 0 10px #000;
}

Animated outline

Adding an animation to change the outline:

<div class="animated-stroke">
	Lorem ipsum dolor sit amet
</div>

.animated-stroke {
	font-size: 38px;
	color: white;
	-webkit-text-stroke: 1px #ff0000;
	text-stroke: 1px #ff0000;
	animation: pulse 2s infinite;
}

@keyframes pulse {
	0% { -webkit-text-stroke: 1px #ff0000; text-stroke: 1px #ff0000; }
	50% { -webkit-text-stroke: 3px #ff0000; text-stroke: 3px #ff0000; }
	100% { -webkit-text-stroke: 1px #ff0000; text-stroke: 1px #ff0000; }
}