One of the best query plugins is Css Grader. It helps you in debugging CSS code. In addition to that, it provides a flexible solution for dealing with varying kinds of media queries. For example, with the help of this CSS query plugin, you will get an easy way to create grid responsive layouts. You can also debug complex cross-browser compatibility tests with this plug-in. In short, this is a perfect solution for developing cross-browser-compatible layouts.
The best query plugins for WordPress themes are WordPress Waterfall and Ultimate WordPress Theme Support. The waterfall is a simple plug-in that displays a waterfall widget. It supports various layouts and themes, including; regular, image, sliding, and multi-fold. Furthermore, it provides support for many Google analytics properties.
The other best query plugin for WordPress themes is the JQuery gallery. This plugin allows you to easily download images from any site and place them on your website. Moreover, this plugin makes it easier for users to add and edit images. The ultimate jquery plugin that you must install on your website is JZFiddle. This smaller version of the query is a must-have plugin for those interested in developing small and neat websites.
Another great jQuery plugin is Flex Mega Menu. This popular flex script enables you to display menu components on your website using user experience design techniques. If you want to develop mobile-friendly web applications, this will be a great choice for you as it supports mobile devices such as mobiles, tablets, and touch screen devices.