While many websites use feature detection to ensure their sites provide different experiences for browsers of different capabilities, some legacy websites use other techniques, such as the use of script on the server or client, to detect the browser.Here we introduce conditional comments, which offer advantages over scripted browser detection techniques. Conditional comments make it easy to detect
![About conditional comments (Internet Explorer)](https://cdn-ak-scissors.b.st-hatena.com/image/square/d6e4cb632c7025e9f5e05fd314fbf6dcd6144e8d/height=288;version=1;width=512/https%3A%2F%2Flearn.microsoft.com%2Fen-us%2Fmedia%2Fopen-graph-image.png)