Draw a rectangle.
<!DOCTYPE html> <html> <body> <canvas id="myCanvas" width="300" height="180" style="border:1px solid #d3d3d3;"> Your browser does not support the HTML5 canvas tag.</canvas> <script> var c = document.getElementById("myCanvas"); var ctx = c.getContext("2d"); var gradient = ctx.createLinearGradient(0, 0, 170, 0); gradient.addColorStop("0", "magenta"); gradient.addColorStop("0.5", "blue"); gradient.addColorStop("1.0", "red"); // Fill with gradient ctx.strokeStyle = gradient;//from w ww .j a v a2s .c o m ctx.lineWidth = 5; ctx.strokeRect(20, 20, 150, 100); </script> </body> </html>