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CSS

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CSS Base

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Babel includes JSX processing.

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HTML 

              
                <body class="layout-column">  

  <div class="radio-controls layout-align-center-center layout-row">
    
    <div class="radio-group">    
      <div class="radio-title">Horizontal Alignment</div>      
      <div class="radio-item">
        <input type="radio" name="horizontal" id="h-start" value="start" />
        <label for="h-start">Start</label>
      </div>      
      <div class="radio-item">
        <input type="radio" name="horizontal" id="h-center" value="center" checked />
        <label for="h-center">Center</label>
      </div>      
      <div class="radio-item">
        <input type="radio" name="horizontal" id="h-end" value="end" />
        <label for="h-end">End</label>
      </div>      
    </div>
    
    <div class="radio-group">    
      <div class="radio-title">Vertical Alignment</div>      
      <div class="radio-item">
        <input type="radio" name="vertical" id="v-start" value="start" />
        <label for="v-start">Start</label>
      </div>      
      <div class="radio-item">
        <input type="radio" name="vertical" id="v-center" value="center" checked />
        <label for="v-center">Center</label>
      </div>      
      <div class="radio-item">
        <input type="radio" name="vertical" id="v-end" value="end" />
        <label for="v-end">End</label>
      </div>      
    </div>    
  </div> 
  
  <section class="main layout-align-center-center layout-column flex">  
    <div class="container layout-align-center-center layout-row">
      <div class="box"></div>
    </div>    
  </section>
  
</body>
!

CSS 

              
                * {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  position: relative;
  font-family: Roboto, "Helvetica Neue", sans-serif;
}

body {
  max-width: 100%;
  max-height: 100%;
  overflow: hidden;
  background: #eaeaea; 
}

.main {
  padding: 25px 75px 75px;
}

.container {
  position: relative;
  width: 100%;
  height: 100%;
  background: #fff;
  border-radius: 2px;
  box-shadow: 
    0 2px 2px rgba(0,0,0,0.24), 
    0 0 2px rgba(0,0,0,0.12);
}

.box {
  width: 30%;
  height: 30%;
  background: #673ab7; 
  box-shadow: 
    0 3px 5px -1px rgba(0,0,0,0.2), 
    0 6px 10px 0 rgba(0,0,0,0.14), 
    0 1px 18px 0 rgba(0,0,0,0.12);
}

.radio-controls {
  padding-top: 25px;
}

.radio-group {
  margin: 15px;
}

.radio-title {
  font-size: 20px;
  font-weight: bold;
}

.radio-item {
  font-size: 18px;
  padding: 6px 6px 0 6px;
}

.layout-align,
.layout-align-start-stretch {
  align-content: stretch;
  align-items: stretch;
}

.layout-align,
.layout-align-start,
.layout-align-start-center,
.layout-align-start-end,
.layout-align-start-start,
.layout-align-start-stretch {
  justify-content: flex-start;
}

.layout-align-center,
.layout-align-center-center,
.layout-align-center-end,
.layout-align-center-start,
.layout-align-center-stretch {
  justify-content: center;
}

.layout-align-end,
.layout-align-end-center,
.layout-align-end-end,
.layout-align-end-start,
.layout-align-end-stretch {
  justify-content: flex-end;
}

.layout-align-space-around,
.layout-align-space-around-center,
.layout-align-space-around-end,
.layout-align-space-around-start,
.layout-align-space-around-stretch {
  justify-content: space-around;
}

.layout-align-space-between,
.layout-align-space-between-center,
.layout-align-space-between-end,
.layout-align-space-between-start,
.layout-align-space-between-stretch {
  justify-content: space-between;
}

.layout-align-center-start,
.layout-align-end-start,
.layout-align-space-around-start,
.layout-align-space-between-start,
.layout-align-start-start {
  align-items: flex-start;
  align-content: flex-start;
}

.layout-align-center-center,
.layout-align-end-center,
.layout-align-space-around-center,
.layout-align-space-between-center,
.layout-align-start-center {
  align-items: center;
  align-content: center;
  max-width: 100%;
}

.layout-align-center-center > *,
.layout-align-end-center > *,
.layout-align-space-around-center > *,
.layout-align-space-between-center > *,
.layout-align-start-center>* {
  max-width: 100%;
  box-sizing: border-box;
}

.layout-align-center-end,
.layout-align-end-end,
.layout-align-space-around-end,
.layout-align-space-between-end,
.layout-align-start-end {
  align-items: flex-end;
  align-content: flex-end;
}

.layout-align-center-stretch,
.layout-align-end-stretch,
.layout-align-space-around-stretch,
.layout-align-space-between-stretch,
.layout-align-start-stretch {
  align-items: stretch;
  align-content: stretch;
}

.flex {
  flex: 1;
}

.flex-grow {
  flex: 1 1 100%;
}

.flex-initial {
  flex: 0 1 auto;
}

.flex-auto {
  flex: 1 1 auto;
}

.flex-none {
  flex: 0 0 auto;
}

.flex-noshrink {
  flex: 1 0 auto;
}

.flex-nogrow {
  flex: 0 1 auto;
}

.layout-row > .flex {
  min-width: 0;
}

.layout-column > .flex {
  min-height: 0;
}

.layout,
.layout-column,
.layout-row {
  display: flex;
}

.layout-column {
  flex-direction: column;
}

.layout-row {
  flex-direction: row;
}

.layout-wrap {
  flex-wrap: wrap;
}

.layout-nowrap {
  flex-wrap: nowrap;
}

.layout-fill {
  margin: 0;
  width: 100%;
  min-height: 100%;
  height: 100%;
}
!

JS 

              
                console.clear();

var boxNode = $(".box")[0];
var radios = $("[type=radio]");
var container = $(".container");

var hAlignment = "center";
var vAlignment = "center";

var currentLayout = "layout-align-center-center";

// Initialize transforms on node
TweenLite.set(boxNode, { x: "+=0" });

var box = {
  node: boxNode,
  x: boxNode.offsetLeft,
  y: boxNode.offsetTop,
  transform: boxNode._gsTransform
};

radios.change(setAlignment);

$(window).resize(layout);

function setAlignment() {
    
  if (this.name === "horizontal") {
    hAlignment = this.value;
  } else {
    vAlignment = this.value;
  }
  
  container.removeClass(currentLayout);
  currentLayout = "layout-align-" + hAlignment + "-" + vAlignment;
  container.addClass(currentLayout);
    
  layout();
}

function layout(event) {
   
  // Last offset position
  var lastX = box.x;
  var lastY = box.y;

  // Record new offset position
  box.x = box.node.offsetLeft;
  box.y = box.node.offsetTop;

  // Exit if box hasn't moved
  if (lastX === box.x && lastY === box.y) return;
  
  // Reversed delta values taking into account current
  // transforms in case animation was interrupted
  var x = box.transform.x + lastX - box.x;
  var y = box.transform.y + lastY - box.y;  

  var duration = event && event.type === "resize" ? 0 : 0.5;
  
  // Tween to 0,0 to remove the transforms
  TweenLite.fromTo(box.node, duration, { x: x, y: y }, { x: 0, y: 0, ease: Power1.easeInOut }); 
}
!
999px

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