This tutorial will walk you through all the operations and properties you need to master Flexbox.

FlexBox Basics:

FlexBox Levels:

• Flex container - The parent element

• Flex items - The child elements inside the parent element

Flex Container Property:

2. Flex Container Properties

2.1 flex-direction

Determines the direction of the main axis (the axis along which items are placed).

• Values:

  • row (default): Items are placed horizontally.

  • row-reverse: Items are placed horizontally in reverse order.

  • column: Items are placed vertically.

  • column-reverse: Items are placed vertically in reverse order.

.container {
  flex-direction: row;
}

2.2 justify-content

Aligns items along the main axis.

• Values:

  • flex-start (default): Items are aligned to the start of the main axis.

  • flex-end: Items are aligned to the end.

  • center: Items are centered.

  • space-between: Equal space between items.

  • space-around: Equal space around items.

  • space-evenly: Equal space between and around items.

.container {
  justify-content: space-between;
}

2.3 align-items

Aligns items along the cross axis (perpendicular to the main axis).

• Values:

  • stretch (default): Items stretch to fill the container.

  • flex-start: Items align to the start of the cross axis.

  • flex-end: Items align to the end.

  • center: Items are centered.

  • baseline: Items align to the baseline of the text.

.container {
  align-items: center;
}

2.4 align-content

Aligns multiple lines of items along the cross axis (only applicable when items wrap).

• Values:

  • stretch (default): Lines stretch to fill the container.

  • flex-start: Lines align to the start.

  • flex-end: Lines align to the end.

  • center: Lines are centered.

  • space-between: Equal space between lines.

  • space-around: Equal space around lines.

.container {
  align-content: space-around;
}

2.5 flex-wrap

Specifies whether items should wrap onto multiple lines.

• Values:

  • nowrap (default): All items are on one line.

  • wrap: Items wrap onto multiple lines.

  • wrap-reverse: Items wrap onto multiple lines in reverse order.

.container {
  flex-wrap: wrap;
}

2.6 gap

Specifies spacing between items.

• Values: Any length unit (e.g., 10px, 1rem, 5%).

.container {
  gap: 20px;
}

---

3. Flex Item Properties

3.1 flex

A shorthand for flex-grow, flex-shrink, and flex-basis.

.item {
  flex: 1; /* Equivalent to flex-grow: 1; flex-shrink: 1; flex-basis: 0%; */
}

3.2 align-self

Overrides align-items for individual items.

• Values: Same as align-items.

.item {
  align-self: flex-end;
}

---

Practical Examples

Scenarios: Place the subject to the Destination.

• Scenario 1: See the diagram

  

  Solution

    .container {
      display: flex;
      justify-content: center;
      align-items: end;
    }
  

• Scenario 2: See the Diagram

  

  Solution

    .container {
      display: flex;
      flex-direction: column;
      justify-content: end;
    }
  

• Scenario 3: See the diagram

  

  Solution

    .container {
      display: flex;
      flex-direction: column-reverse;
      justify-content: space-between;
    }
  

• Scenario 3: See the diagram

  

  Solution

    .container {
      display: flex;
      flex-wrap:wrap;
    }
  

• Scenario 4: See the diagram

  

  Solution

    .container {
      display: flex;
      flex-wrap: wrap-reverse;
    }
  

• Scenario 5: See the diagram

  

  Solution

    .container {
      display: flex;
      flex-wrap: wrap;
      align-content:start;
    }
  

• Scenario 6: See the diagram

  

  Solution

    .container {
      display: flex;
      flex-wrap: wrap;
      flex-direction: column-reverse;
      align-content:center
    }
  

• Scenario 7: See the diagram

• 

• Solution

.container {
  display: flex;
  justify-content:center;
  align-content:space-between;
  flex-flow:column-reverse wrap-reverse;
}

• Scenario 8: See the diagram

  

Solution

.container {
   display: flex;
   align-items: flex-start;
}
#blue{
   order:1;
   align-self:end;
}

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