As we know CSS is an important part in Front end development. By using CSS latest versions, we can make good dynamic effects just like jQuery effects. But sometimes we are spending lots of time to fix some cross browser issues or to modify some styling changes. And if you want to modify the common styling, we have to write many coding in CSS. But if you are using some preprocessors like LESS it will make the CSS coding easily because we can add the code with a small effort. There are many advantages when you use a preprocessor like LESS or SASS. Just we need to install the LESS and a compiler which compiles the less file into CSS. For more details you can refer http://lesscss.org