Support: Chrome 25 supports ShadowDOM natively. Chrome 26 supports <template>. A Shadow DOM polyfill is used for browsers that do not support it natively. ShadowDOM Visualizer Oops! Your browser does not support ShadowDOM or <template> natively! Try Chrome. This tools allows you to visualize how Shadow DOM renders in the browser. Both code blocks on the left are editable. Try changing the <content