<!DOCTYPE html>
<html>
<head>
<style type="text/css" media="screen">
body { overflow: hidden; }
.box {
display: inline-block;
height: 120px;
width: 201px;
margin: 10px;
border: 1px solid black;
background-repeat: no-repeat;
}
.gradientAngle0 {
background-image: linear-gradient(0deg, white, black);
}
.gradientAngle90 {
background-image: linear-gradient(90deg, white, black);
}
.gradientAngle180 {
background-image: linear-gradient(180deg, white, black);
}
.gradientAngle270 {
background-image: linear-gradient(270deg, white, black);
}
.gradientAngleMinus0 {
background-image: linear-gradient(-0deg, white, black);
}
.gradientAngleMinus90 {
background-image: linear-gradient(-90deg, white, black);
}
.gradientAngleMinus180 {
background-image: linear-gradient(-180deg, white, black);
}
.gradientAngleMinus270 {
background-image: linear-gradient(-270deg, white, black);
}
.gradientAngle360 {
background-image: linear-gradient(360deg, white, black);
}
.gradientAngle450 {
background-image: linear-gradient(450deg, white, black);
}
.gradientAngle540 {
background-image: linear-gradient(540deg, white, black);
}
.gradientAngle630 {
background-image: linear-gradient(630deg, white, black);
}
</style>
</head>
<body>
<div class="box gradientAngle0"></div>
<div class="box gradientAngleMinus0"></div>
<div class="box gradientAngle360"></div>
<br/>
<div class="box gradientAngle90"></div>
<div class="box gradientAngleMinus270"></div>
<div class="box gradientAngle450"></div>
<br/>
<div class="box gradientAngle180"></div>
<div class="box gradientAngleMinus180"></div>
<div class="box gradientAngle540"></div>
<br/>
<div class="box gradientAngle270"></div>
<div class="box gradientAngleMinus90"></div>
<div class="box gradientAngle630"></div>
</body>
</html>