The blog on building a CSS grid scheduler highlights the significance of CSS grids in creating responsive web layouts that adapt to various devices and screen sizes, addressing the limitations faced by older layout techniques such as floats and positions. It explains the basic concepts of CSS grids, including grid containers and grid items, and contrasts grids with flexbox which only allows for single-direction layouts. The tutorial offers a step-by-step guide on using CSS grid properties like fr-units, repeat(), subgrid, minmax(), and grid-template-areas to build a conference scheduler. It emphasizes the advantages of CSS grids, such as reduced code complexity and enhanced design flexibility, and discusses browser support and cross-browser compatibility. The blog concludes with a practical project to build a conference scheduler using CSS grids, demonstrating the application of learned concepts to create a responsive and visually appealing layout.