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CSS

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JavaScript

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HTML 

              
                #app
  h1 Flexbox Visual Playground
  .flexboxes.container-fluid(:style="getStyle", :class="direction")
    .box 1
    .box 2
    .box 3
    .box 4
    .box 5
    .axis.main 
      label 主軸線 (justify)
    .axis.sub 
      label 副軸線 (align)
  .settings.container-fluid
    br
    .form-group.row
      .col-sm-3
        label 方向(flex-direction)
      .col-sm-9
        .btn-group
          button.btn.btn-secondary(
            v-for="d in values.direction",
            @click="direction=d", 
            :class="{active: direction==d}") {{d}}
    .form-group.row
      .col-sm-3
        label 主軸分布(justify-content)
      .col-sm-9
        .btn-group
          button.btn.btn-secondary(
            v-for="d in values.justify",
            @click="justify=d",
            :class="{active: justify==d,'btn-warning': d.indexOf('space')!=-1}") {{d}}
    .form-group.row
      .col-sm-3
        label 副軸分布(align-items)
      .col-sm-9
        .btn-group
          button.btn.btn-secondary(
            v-for="d in values.align",
            @click="align=d", 
            :class="{active: align==d,'btn-warning': d.indexOf('space')!=-1}") {{d}}
!

CSS 

              
                *
  // transition: 0.5s
=flexCenter
  display: flex
  justify-content: center
  align-items: center
html,body
  width: 100%
  height: 100%
  margin: 0
  // background-color: #111
  +flexCenter
  
body
  padding-top: 100px
.flexboxes
  border: solid 10px #333
  position: relative
  display: flex
  // width: 800px
  height: 500px
  margin: 50px
  padding: 0
  &.column,&.column-reverse
    .axis.main
      width: 0px
      height: 100%
      label
        top: -50px
        right: initial
    .axis.sub
      width: 100%
      height: 0px
      label
        right: -120px
        top: initial

  
.box
  width: 15%
  height: 15%
  background-color: #fff
  font-size: 40px
  
.axis
  position: absolute  
  left: 50%
  top: 50%
  transform: translate(-50%,-50%)
  text-align: center
  label
    position: absolute
    right: -120px
    white-space: nowrap
.axis.main
  width: 100%
  height: 0px
  border: solid 2px red
  color: red
.axis.sub
  width: 0px
  height: 100%
  border: solid 2px MediumBlue  
  color: MediumBlue 
  label
    position: absolute
    top: -50px

  
  
.box
  display: flex
  justify-content: center
  align-items: center
  background-color: #333
  border: solid 2px #666
  color: #666
  position: relative
  z-index: 100
  
  @for $i from 1 through 5
    &:nth-child(#{$i})
      background-color: rgba(white,$i*0.15+0.2)
  
.settings
  background-color: #fff
!

JS 

              
                var vm = new Vue({
  el: "#app",
  data: {
    direction: "row",
    justify: "center",
    align: "center",
    values: {
      direction: ["row","column","row-reverse","column-reverse"],
      justify: ["flex-start","center","flex-end","space-around","space-between","space-evenly"],
      
      align: ["flex-start","center","flex-end","space-around","space-between","space-evenly"]
    }
  },
  computed: {
    getStyle(){
      return {
        "flex-direction": this.direction,
        "justify-content": this.justify,
        "align-items": this.align,
        
      }
    }
  }
})
!
999px

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