Column Ordering

Column Ordering in Bootstrap allows you to change the visual order of elements without actually changing the order of your HTML. This plays a large part in responsive design–allowing you to have things display differently on mobile (think an image above text) than they will on a desktop (to the right of the text). Bootstrap implements two major techniques to do this: Order classes and Offset classes.

1. The order Classes

The simplest method is to take advantage of the.order- classes. They are assigned on a scale of 1 to 5 along with first and last..order-last: Moves a given column all the way to the end..order-first: Moves a given column all the way to the beginning..order-0 to.order-5: Attaches numbers to your columns, and the higher the value the father to the right (bottom on mobile). How they look in practice: HTML

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1 st in html, 3 on Screen

2nd in HTML, 2nd on the Screen.

< div class=“col order-1”> 3 rd in HTML 1 st on Screen.;

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Cost in present terms. Table 10.7 presents the current costs of a trip for the three selected addresses. The costs are relatively small. Because of the high allowance given in the past these costs are nothing compared to the costs each place cost per trip today.

2. Responsive ordering.

This is where the fun begins. Once you have placed all your elements into the columns, you can specify ordering according to the screen size (mobile/tablet/desktop) and specify this with the breakpoint shorthand (sm, md, lg, xl).–Use case—i want my “sidebar” to appear below my “main content” on mobile but before it on a large desktop. HTML

Main Content(Shown 1 st on mobile)
Sidebar (Displayed 2 nd on mobile)

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On Mobile: It is according HTML order(Content first, Sidebar second). On Desktop (md and up): The Sidebar will order-1and move to left.

3. Offset Classes

Sometimes ‘ordering’ isn‘t just about changing the position but also about moving a column to the right to add space. We use.offset- for this..offset-md-4: Pushes. Column four units over on medium screens. This is useful for centering a column without needing to add other “empty” divs.

4. Key Rules to RememberFlexbox based:

Bootstrap Column Ordering uses the CSS order property internally. Mobile First: All classes like.order-2go to the smallest device size and continue to apply to larger sizes unless you “reset” the ordering with another class such as .order-md-1The 1 to 5 Limit: There are only classes up to 5 available by default. If you needed to move 10 columns you would need to write custom CSS. Summary TableClassWhat it does.order-firstKicks the element to the very beginning (order: -1)..order-lastKicks the element to the very end (order: 6)..order-0Defaults the order to normal..offset-*Adds “empty space” to the to the left of your column.