A grid is a grid system composed of a series of regular small grids, which constitute the smallest unit of a page. In web design, the bulk sms send grid size is often defined as 8, which not only conforms to the even-numbered idea but also matches most mainstream display devices. Currently, the bulk sms send front-end open source component libraries are mostly designed based on the atomic unit of 8.

The bulk sms send grid system is formed by alternating columns (Columns) and Gutters (Gutters). Columns are the number unit of grids. Usually, setting the number of grids refers to the bulk sms send number of columns. For example, 12 grids have 12 1 column, 24 grids have 24 columns.

Gutter is the spacing of the bulk sms send page content. The larger the value of the Gutter, the more white space is left on the page and the bulk sms send looser the visual effect; on the contrary, the more compact the page is. Slots are usually set to a fixed value.