Grid is significantly younger than Flexbox and has slightly less browser support. That is why, if people are questioning if the CSS grid is come to replace Flexbox, it makes perfect sense. To put it another way, they can coexist: a grid item can be a flexbox container.
Grid and flexbox The primary distinction between CSS Grid Layout and CSS Flexbox Layout is that Flexbox was developed for one-dimensional layout—either a row or a column. The grid was created for a two-dimensional structure with rows and columns. They both support the same properties and share some similarities, but they are not interchangeable.
Flexbox is mostly used to align content and move blocks. CSS grids are used for two-dimensional layouts. It is applicable to both rows and columns. Flexbox works best in a single dimension (either rows OR columns). For example, it's useful for creating an alignment between items in a list.
Both techniques can be combined to create flexible interfaces. The float technique can be used along with flexbox to achieve this goal.
Here is an example of using floats with flexboxes:
In this case, we are building a flexbox layout that contains three columns. Each column will take up 1/3 of the space available so they will all have the same width. Then, we want the third column to be half as wide as the other two which means we need to add another element into it. Finally, we need the fourth element in the container to be aligned with the third one since they both have the same width.
CSS grid is used for layout, whereas Flexbox is used for alignment. We should strive to employ both of them simultaneously, but for separate goals. Use CSS grid for your layout, and Flexbox for element alignment.
The grid is best suited for a few specialized use situations (2D, obviously, but also things like overlapping elements), whereas the flexbox excels in basic yet common layout needs. When you already have a layout framework in mind, use grid, and when you just want everything to fit, use flex. Content first vs. layout first isn't as clear-cut as it may seem at first glance, but understanding where each system fits best will help you achieve great results on any project.
The CSS grid was created to assist us in creating more complicated layout designs in two dimensions, employing both rows and columns. Use CSS grid for your layout. Flexbox may be used to align your components.
Chrome, Firefox, Safari, and Edge all support CSS grid without vendor prefixes as of October 2017. CSS grids are supported by Internet Explorer 10 and 11, although with an out-of-date standard. Except for Opera Mini and Brave Browser on mobile, all recent browsers support CSS grid. Modernizr 3.5 can be used by web developers that want to target outdated browsers.
Flexbox serves as the foundation for Bootstrap 4's grid system. I'll go through the Flexbox CSS attributes that underpin the new grid's functionality, as well as how the Bootstrap flex utility classes operate to help you create beautiful layouts fast and easily.