CSS Flexbox is a powerful layout module that allows you to create flexible and responsive designs. It provides a way to distribute space among items in a container and align them according to various layout options.

1. Properties for the Parent (flex container)

   ->display

   ->flex-direction

   ->flex-wrap

   ->flex-flow

   -> justify-content

   -> align-items align-content

   ->gap, row-gap, column-gap.

   

2. Properties for the Children (flex items)

   ->order.

   ->flex-grow

   ->flex-shrink

   ->flex-basis

   ->flex align-self

   

   Now we are going to learn about every property step by step.

   1. DISPLAY

      This defines a flex container; inline or block depending on the given value. It enables a flexible context for all its direct children.

      here in a container, I give a display flex.

   2. Flex Direction

      This establishes the main axis, thus defining the direction flex items are placed in the flex container. Flexbox is (aside from optional wrapping) a single-direction layout concept.

      Think of flex items as primarily laying out either in horizontal rows or vertical columns.

      It can have values like row, row-reverse, column, or column-reverse.

• row (default): left to right in ltr; right to left in rtl

• row-reverse: right to left in ltr; left to right in rtl

• column: same as row but top to bottom

• column-reverse: same as row-reverse but bottom to top

1. flex-wrap

   By default, flex items will all try to fit onto one line. You can change that and allow the items to wrap as needed with this property.

   • nowrap (default): all flex items will be on one line.

   • wrap: flex items will wrap onto multiple lines, from top to bottom.

   • wrap-reverse: flex items will wrap onto multiple lines from bottom to top.

1. flex-flow

   This is a shorthand for the flex-direction and flex-wrap properties, which together define the flex container’s main and cross axes. The default value is row nowrap.

.container {

flex-flow: column wrap;

}

1. Justify Content

   Controls the alignment of flex items along the main axis. It offers options such as flex-start, flex-end, center, space-between, space-around, and space-evenly.

   • flex-start (default): items are packed toward the start of the flex-direction.

   • flex-end: items are packed toward the end of the flex-direction.

   • start: items are packed toward the start of the writing-mode direction.

   • end: items are packed toward the end of the writing-mode direction.

   • left: items are packed toward left edge of the container, unless that doesn’t make sense with the flex-direction, then it behaves like start.

   • right: items are packed toward right edge of the container, unless that doesn’t make sense with the flex-direction, then it behaves like end.

   • center: items are centered along the line

   • space-between: items are evenly distributed in the line; first item is on the start line, last item on the end line

   • space-around: items are evenly distributed in the line with equal space around them. Note that visually the spaces aren’t equal, since all the items have equal space on both sides. The first item will have one unit of space against the container edge, but two units of space between the next item because that next item has its own spacing that applies.

   • space-evenly: items are distributed so that the spacing between any two items (and the space to the edges) is equal.

Examples you can value according to you and see the result

1. align-items

   This defines the default behavior for how flex items are laid out along the cross axis on the current line. Think of it as the justify-content version for the cross-axis (perpendicular to the main-axis).

2. align-content

   This aligns a flex container’s lines within when there is extra space in the cross-axis, similar to how justify-content aligns individual items within the main-axis.

3. gap, row-gap, column-gap

   .container {

   display: flex; ... gap: 10px;

   gap: 10px 20px; /\ row-gap column gap */*

   row-gap: 10px; column-gap: 20px;

   }

Now end of this article I will write on this on next day Properties for the Children.