To set the font size with the font-size property, you can set keywords as well. These keywords are divided into absolute-size or relative-size keywords −
Relative-size keywords
Includes the following keywords: larger, smaller
Absolute-size keywords
Includes the following keywords: xx-small, x-small, small, medium, large, x-large, xx-large, xxx-large
Example
Let us now see an example wherein we will set the font size with Absolute-size keywords −
<!DOCTYPE html>
<html>
<head>
<style>
.demo {
grid-area: newArea;
font-size: xx-large;
}
.item3 {
font-size: small;
}
.item4 {
font-size: medium;
}
.item5 {
font-size: x-large;
}
.grid-container {
display: grid;
grid-template-areas:
'newArea newArea . . .'
'newArea newArea . . .';
grid-gap: 5px;
background-color: blue;
padding: 5px;
}
.grid-container > div {
background-color: orange;
text-align: center;
padding: 5px 0;
}
</style>
</head>
<body>
<h1>Heading One</h1>
<p>Set some random numbers</p>
<div class="grid-container">
<div class="demo">250</div>
<div class="item2">120</div>
<div class="item3">333</div>
<div class="item4">298</div>
<div class="item5">645</div>
<div class="item6">543</div>
<div class="item7">555</div>
</div>
</body>
</html>Output

Example
Let us now see another example wherein we will set the font size with pixesl −
<!DOCTYPE html>
<html>
<head>
<style>
.demo {
grid-area: newArea;
font-size: smaller;
}
.item3 {
font-size: smaller;
}
.item4 {
font-size: larger;
}
.item5 {
font-size: larger;
}
.grid-container {
display: grid;
grid-template-areas:
'newArea newArea . . .'
'newArea newArea . . .';
grid-gap: 5px;
background-color: blue;
padding: 5px;
}
.grid-container > div {
background-color: orange;
text-align: center;
padding: 5px 0;
}
</style>
</head>
<body>
<h1>Heading One</h1>
<p>Set some random numbers</p>
<div class="grid-container">
<div class="demo">250</div>
<div class="item2">120</div>
<div class="item3">333</div>
<div class="item4">298</div>
<div class="item5">645</div>
<div class="item6">543</div>
<div class="item7">555</div>
</div>
</body>
</html>Output
