<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
.gradient1 {
height: 150px;
width: 150px;
background-color: blue;
background-image: radial-gradient(closest-side at 60% 55%, #ff0509, #fff700, #103601);
}
.gradient2 {
height: 150px;
width: 150px;
background-color: blue;
background-image: radial-gradient(farthest-side at 60% 55%, #ff0509, #fff700, #103601);
}
.gradient3 {
height: 150px;
width: 150px;
background-color: blue;
background-image: radial-gradient(closest-corner at 60% 55%, #ff0509, #fff700, #103601);
}
.gradient4 {
height: 150px;
width: 150px;
background-color: blue;
background-image: radial-gradient(farthest-corner at 60% 55%, #ff0509, #fff700, #103601);
}
</style>
</head>
<body>
<h2>closest-side:</h2>
<div class="gradient1"></div>
<h2>farthest-side:</h2>
<div class="gradient2"></div>