To check you layout, to be equal to grid. Just put guide lines on page. It very easy to move them in place your needed or rotate, only with your mouse.
You can Follow the below Step By Step procedure to install the Zaqwes Guide Lines Chrome Extension to your Chrome Web browser.
It is the Zaqwes Guide Lines Chrome extension download link you can download and install Chrome Browser.
Create grids and measure their distance easily.
Measure and align elements within Chrome
A very simple grid system overlay pluggin.
Photoshop-like guide lines for any page
Chrome extension for measuring elements on page
This simple app allows you to create modify and delete horizontal and vertical guides to check if the elements are correctly aligned
A tool for designers to measure screen dimensions
Measurement tools, rulers and grids
Overlay a grid on any page to aid in designing pixel-perfect sites. Code can be found at: https://github.com/rmartinez93/QuickGrid