<div class="principal">
<h2>Properties for the flex container</h2>
<div class="control">
<h4><a href="http://w3.unpocodetodo.info/css3/flex-direction.php">flex-direction</a> <small>( property of the flex container  )</small></h4><!--flex-direction: row | row-reverse | column | column-reverse;-->
<div class="radio">
<input name="flex-direction" type="radio"  class="flex-direction" id="R11" value="row" checked><label for="R11">row:</label>
<input name="flex-direction"  type="radio" class="flex-direction" id="R12" value="row-reverse"><label for="R12">row-reverse:</label>
<input name="flex-direction"  type="radio" class="flex-direction" id="R13" value="column"><label for="R13">column:</label>
<input name="flex-direction"  type="radio" class="flex-direction" id="R14" value="column-reverse"><label for="R14">column-reverse:</label>
</div></div>
<div class="flex-container" id="direction">
<div class="item" data-color="2a80b9"><p>1</p></div>
<div class="item" data-color="8f44ad"><p>2</p></div>
<div class="item" data-color="16a086"><p>3</p></div>
<div class="item" data-color="f1c40f"><p>4</p></div>
<div class="item" data-color="e77e23"><p>5</p></div>
</div>

<div class="control">
<h4><a href="http://w3.unpocodetodo.info/css3/flex-wrap.php">flex-wrap</a> <small>( property of the flex container  )</small></h4><!--nowrap | wrap | wrap-reverse;-->
<div class="radio">
<input name="flex-wrap" type="radio"  class="flex-wrap" id="R21" value="nowrap" checked><label for="R21">nowrap:</label>
<input name="flex-wrap" type="radio"  class="flex-wrap" id="R22" value="wrap"><label for="R22">wrap:</label>
<input name="flex-wrap" type="radio"  class="flex-wrap" id="R23" value="wrap-reverse"><label for="R23">wrap-reverse:</label>
</div></div>
<div class="flex-container" id="wrap">
<div class="item" data-color="2a80b9"><p>1</p></div>
<div class="item" data-color="8f44ad"><p>2</p></div>
<div class="item" data-color="16a086"><p>3</p></div>
<div class="item" data-color="f1c40f"><p>4</p></div>
<div class="item" data-color="e77e23"><p>5</p></div>
</div>

<div class="control">
<h4><a href="http://w3.unpocodetodo.info/css3/flex-align-items.php">align-items</a> <small>( property of the flex container  )</small></h4><!-- flex-start | flex-end | center | baseline | stretch;-->
<div class="radio">
<input name="flex-align-items" type="radio"  class="flex-align-items" id="R31" value="align-items-start" ><label for="R31">flex-start:</label>
<input name="flex-align-items" type="radio"  class="flex-align-items" id="R32" value="align-items-end"><label for="R32">flex-end:</label>
<input name="flex-align-items" type="radio"  class="flex-align-items" id="R33" value="align-items-center"><label for="R33">center:</label>
<input name="flex-align-items" type="radio"  class="flex-align-items" id="R34" value="align-items-baseline"><label for="R34">baseline:</label>
<input name="flex-align-items" type="radio"  class="flex-align-items" id="R35" value="align-items-stretch" checked><label for="R35">stretch:</label>
</div></div>
<div class="flex-container" id="align">
<div class="item" data-color="2a80b9"><p>1</p></div>
<div class="item" data-color="8f44ad"><p>2</p></div>
<div class="item" data-color="16a086"><p style="font-size:50px;">3</p></div>
<div class="item" data-color="f1c40f"><p>4</p></div>
<div class="item" data-color="e77e23"><p>5</p></div>
</div>


<div class="control">
<h4><a href="http://w3.unpocodetodo.info/css3/flex-justify-content.php">justify-content</a> <small>( property of the flex container )</small></h4> <!--justify-content: flex-start | flex-end | center | space-between | space-around; -->
<div class="radio">
<input name="justify-content" type="radio"  class="justify-content" id="R41" value="justify-start" checked ><label for="R41">flex-start:</label>
<input name="justify-content" type="radio"  class="justify-content" id="R42" value="justify-end" ><label for="R42">flex-end:</label>
<input name="justify-content" type="radio"  class="justify-content" id="R43" value="justify-space-between" ><label for="R43">space-between:</label>
<input name="justify-content" type="radio"  class="justify-content" id="R44" value="justify-center" ><label for="R44">center:</label>
<input name="justify-content" type="radio"  class="justify-content" id="R45" value="justify-space-around" ><label for="R45">space-around:</label>
</div></div>
<div class="flex-container" id="justify">
<div class="item" data-color="2a80b9"><p>1</p></div>
<div class="item" data-color="8f44ad"><p>2</p></div>
<div class="item" data-color="16a086"><p>3</p></div>
<div class="item" data-color="f1c40f"><p>4</p></div>
<div class="item" data-color="e77e23"><p>5</p></div>

</div>

<!--<p>En <strong>Google Chrome</strong> y <strong>Opera</strong>: problemas al cambiar dinamicamente entre <code>justify-content:space-between</code> y <code>justify-content:space-around</code> </p>-->


<div class="control">
<h4><a href="http://w3.unpocodetodo.info/css3/flex-align-content.php">align-content</a> <small>( property of the flex container  )</small></h4> <!--justify-content: flex-start | flex-end | center | space-between | space-around; -->
<div class="radio">
<input name="align-content" type="radio"  class="align-content" id="R51" value="align-content-start" ><label for="R51">flex-start:</label>
<input name="align-content" type="radio"  class="align-content" id="R52" value="align-content-end" ><label for="R52">flex-end:</label>
<input name="align-content" type="radio"  class="align-content" id="R53" value="align-content-center" ><label for="R53">center:</label>
<input name="align-content" type="radio"  class="align-content" id="R54" value="align-content-space-between" ><label for="R54">space-between:</label>
<input name="align-content" type="radio"  class="align-content" id="R55" value="align-content-space-around" ><label for="R55">space-around:</label>
<input name="align-content" type="radio"  class="align-content" id="R56" value="align-content-stretch"  checked><label for="R56">stretch:</label>
</div></div>
<div class="flex-container" id="alignContent">

<div class="item" data-color="1bbc9d"><p>1</p></div>
<div class="item" data-color="2fcc71"><p>2</p></div>
<div class="item" data-color="3598dc"><p>3</p></div>
<div class="item" data-color="9c59b8"><p>4</p></div>
<div class="item" data-color="34495e"><p>5</p></div>
<div class="item" data-color="16a086"><p>6</p></div>
<div class="item" data-color="27ae61"><p>7</p></div>
<div class="item" data-color="2a80b9"><p>8</p></div>
<div class="item" data-color="8f44ad"><p>9</p></div>
<div class="item" data-color="2d3e50"><p>10</p></div>
<div class="item" data-color="f1c40f"><p>11</p></div>
<div class="item" data-color="e77e23"><p>12</p></div>
<div class="item" data-color="e84c3d"><p>13</p></div>
<div class="item" data-color="ecf0f1"><p>14</p></div>
<div class="item" data-color="96a6a6"><p>15</p></div>
<div class="item" data-color="f49c14"><p>16</p></div>
<div class="item" data-color="d55401"><p>17</p></div>
<div class="item" data-color="c1392b"><p>18</p></div>
<div class="item" data-color="bec3c7"><p>19</p></div>
<div class="item" data-color="808b8d"><p>20</p></div>

</div>



</div>

<!-- propiedades de los items -->

<div class="principal">
<h2>Properties for the flex items </h2>
<div class="control">
<h4><a href="http://w3.unpocodetodo.info/css3/flex-align-self.php">align-self</a> <small>( property for flex items  )</small></h4> <!--auto | flex-start | flex-end | center | baseline | stretch -->
<div class="radio">
<input name="align-self" type="radio"  class="align-self" id="R61" value="align-self-auto"  checked ><label for="R61">auto:</label>
<input name="align-self" type="radio"  class="align-self" id="R62" value="align-self-start" ><label for="R62">flex-start:</label>
<input name="align-self" type="radio"  class="align-self" id="R63" value="align-self-end" ><label for="R63">flex-end:</label>
<input name="align-self" type="radio"  class="align-self" id="R64" value="align-self-center" ><label for="R64">center:</label>
<input name="align-self" type="radio"  class="align-self" id="R65" value="align-self-baseline" ><label for="R65">baseline:</label>
<input name="align-self" type="radio"  class="align-self" id="R66" value="align-self-stretch"><label for="R66">stretch:</label>
</div>

</div>
<div class="flex-container align-items-center" id="FCI1">

<div class="item" data-color="f49c14"><p>1</p></div>
<div class="item" data-color="d55401"><p>2</p></div>
<div class="item" data-color="c1392b"  id="alignSelf"><p style="font-size:50px;">3</p></div>
<div class="item" data-color="bec3c7"><p>4</p></div>
<div class="item" data-color="808b8d"><p>5</p></div>

</div>

<div class="control">
<h4><a href="http://w3.unpocodetodo.info/css3/flex-abreviado.php#flexGrow">flex-grow</a> <small>( property for flex items )</small></h4> <!--auto | flex-start | flex-end | center | baseline | stretch -->
<div class="radio">
<span class="nbsp"><label for="R71">elemento 1: </label><input type="number"  class="flex-grow" id="R71" min="0" ></span>
<span class="nbsp"><label for="R72">elemento 2: </label><input type="number"  class="flex-grow" id="R72" min="0" ></span>
<span class="nbsp"><label for="R73">elemento 3: </label><input type="number"  class="flex-grow" id="R73" min="0" ></span>
<span class="nbsp"><label for="R74">elemento 4: </label><input type="number"  class="flex-grow" id="R74" min="0" ></span>
<span class="nbsp"><label for="R75">elemento 5: </label><input type="number"  class="flex-grow" id="R75" min="0" ></span>
</div>

</div>
<div class="flex-container align-items-center" id="FCI2">

<div class="item" id="itemR71" data-color="f49c14"><p>1</p></div>
<div class="item" id="itemR72" data-color="d55401"><p>2</p></div>
<div class="item" id="itemR73" data-color="c1392b"><p>3</p></div>
<div class="item" id="itemR74" data-color="bec3c7"><p>4</p></div>
<div class="item" id="itemR75" data-color="808b8d"><p>5</p></div>

</div>



<div class="control">
<h4><a href="http://w3.unpocodetodo.info/css3/flex-abreviado.php#flexShrink">flex-shrink</a> <small>( property for flex items )</small></h4> <!--auto | flex-start | flex-end | center | baseline | stretch -->
<div class="radio">
<span class="nbsp"><label for="R81">elemento 1: </label><input type="number"  class="flex-shrink" id="R81" min="0" ></span>
<span class="nbsp"><label for="R82">elemento 2: </label><input type="number"  class="flex-shrink" id="R82" min="0" ></span>
<span class="nbsp"><label for="R83">elemento 3: </label><input type="number"  class="flex-shrink" id="R83" min="0" ></span>
<span class="nbsp"><label for="R84">elemento 4: </label><input type="number"  class="flex-shrink" id="R84" min="0" ></span>
<span class="nbsp"><label for="R85">elemento 5: </label><input type="number"  class="flex-shrink" id="R85" min="0" ></span>
</div>

</div>
<div class="flex-container align-items-center" id="FCI3">

<div class="item" id="itemR81" data-color="f49c14"><p>1</p></div>
<div class="item" id="itemR82" data-color="d55401"><p>2</p></div>
<div class="item" id="itemR83" data-color="c1392b"><p>3</p></div>
<div class="item" id="itemR84" data-color="bec3c7"><p>4</p></div>
<div class="item" id="itemR85" data-color="808b8d"><p>5</p></div>

</div>


<div class="control">
<h4><a href="http://w3.unpocodetodo.info/css3/flex-abreviado.php">flex</a> <small>( property for flex items )</small></h4> <!--auto | flex-start | flex-end | center | baseline | stretch -->
<p>.item { flex: flex-grow [flex-shrink] [flex-basis]; } </p>
<table id="flexBasis">
<tr><td>elemento 1</td><td>elemento 2</td></tr>
<tr><td><input type="number" class="flex-basis" id="B1" min="0" value="50" ><label for="B1">flex-basis %</label></td><td><input type="number" class="flex-basis" id="B2" min="0" value="50" ><label for="B2">flex-basis %</label></td></tr>
<tr><td><input type="number" class="flex-basis-grow" id="G1" min="0" value="0" ><label for="G1">flex-grow</label></td><td><input type="number" class="flex-basis-grow" id="G2" min="0" value="0" ><label for="G2">flex-grow</label></td></tr>
<tr><td><input type="number" class="flex-basis-shrink" id="S1" min="0" value="0" ><label for="S1">flex-shrink</label></td><td><input type="number" class="flex-basis-shrink" id="S2" min="0" value="0" ><label for="S2">flex-shrink</label></td></tr>
</table>
</div>


<div class="flex-container align-items-center" id="FCI4">

<div class="item" id="item1" data-color="f49c14"><p>1</p></div>
<div class="item" id="item2" data-color="d55401"><p>2</p></div>

</div>


<div class="control">
<h4><a href="http://w3.unpocodetodo.info/css3/flex-order.php">order</a> <small>( property for flex items )</small></h4> <!--auto | flex-start | flex-end | center | baseline | stretch -->
<div class="radio">
<span class="nbsp"><label for="R91">elemento 1: </label><input type="number"  class="flex-order" id="R91" min="0" ></span>
<span class="nbsp"><label for="R92">elemento 2: </label><input type="number"  class="flex-order" id="R92" min="0" ></span>
<span class="nbsp"><label for="R93">elemento 3: </label><input type="number"  class="flex-order" id="R93" min="0" ></span>
<span class="nbsp"><label for="R94">elemento 4: </label><input type="number"  class="flex-order" id="R94" min="0" ></span>
<span class="nbsp"><label for="R95">elemento 5: </label><input type="number"  class="flex-order" id="R95" min="0" ></span>
</div>

</div>
<div class="flex-container align-items-center" id="FCI5">


<div class="item" id="orderR91" data-color="f49c14"><p>1</p></div>
<div class="item" id="orderR92" data-color="d55401"><p>2</p></div>
<div class="item" id="orderR93" data-color="c1392b"><p>3</p></div>
<div class="item" id="orderR94" data-color="bec3c7"><p>4</p></div>
<div class="item" id="orderR95" data-color="808b8d"><p>5</p></div>

</div>


</div>
/*flex-direction: row | row-reverse | column | column-reverse;*/

.flex-container.row {
  -webkit-flex-direction: row;
  -ms-flex-direction: row;
  flex-direction: row;
}

.flex-container.row-reverse {
  -webkit-flex-direction: row-reverse;
  -ms-flex-direction: row-reverse;
  flex-direction: row-reverse;
}

.flex-container.column {
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
}

.flex-container.column-reverse {
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column-reverse;
}


/*flex-wrap: nowrap | wrap | wrap-reverse;*/

.flex-container.nowrap {
  -webkit-flex-wrap: nowrap;
  -ms-flex-wrap: nowrap;
  flex-wrap: nowrap;
}

.flex-container.wrap {
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
}

.flex-container.wrap-reverse {
  -webkit-flex-wrap: wrap-reverse;
  -ms-flex-wrap: wrap-reverse;
  flex-wrap: wrap-reverse;
}


/*align-items: flex-start | flex-end | center | baseline | stretch;*/

.flex-container.align-items-start {
  -webkit-align-items: flex-start;
  -ms-flex-align: start;
  align-items: flex-start;
}

.flex-container.align-items-end {
  -webkit-align-items: flex-end;
  -ms-flex-align: end;
  align-items: flex-end;
}

.flex-container.align-items-center {
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
}

.flex-container.align-items-baseline {
  webkit-align-items: baseline;
  -ms-flex-align: baseline;
  align-items: baseline;
}

.flex-container.align-items-stretch {
  webkit-align-items: stretch;
  -ms-flex-align: stretch;
  align-items: stretch;
}


/*justify-content: flex-start | flex-end | center | space-between | space-around;*/

.flex-container.justify-start {
  -webkit-justify-content: flex-start;
  -ms-flex-pack: start;
  justify-content: flex-start;
}

.flex-container.justify-end {
  -webkit-justify-content: flex-end;
  -ms-flex-pack: end;
  justify-content: flex-end;
}

.flex-container.justify-center {
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.flex-container.justify-space-between {
  -webkit-justify-content: space-between;
  -ms-flex-pack: justify;
  justify-content: space-between;
}

.flex-container.justify-space-around {
  -webkit-justify-content: space-around;
  -ms-flex-pack: justify;
  justify-content: space-around;
}


/*align-content: flex-start | flex-end | center | space-between | space-around | stretch;*/

.flex-container.align-content-start {
  -webkit-align-content: flex-start;
  -ms-flex-line-pack: start;
  align-content: flex-start;
}

.flex-container.align-content-end {
  -webkit-align-content: flex-end;
  -ms-flex-line-pack: end;
  align-content: flex-end;
}

.flex-container.align-content-center {
  -webkit-align-content: center;
  -ms-flex-line-pack: center;
  align-content: center;
}

.flex-container.align-content-space-between {
  -webkit-align-content: space-between;
  -ms-flex-line-pack: justify;
  align-content: space-between;
}

.flex-container.align-content-space-around {
  -webkit-align-content: space-around;
  -ms-flex-line-pack: justify;
  /*distribute;*/
  align-content: space-around;
}

.flex-container.align-content-stretch {
  -webkit-align-content: stretch;
  -ms-flex-line-pack: stretch;
  align-content: stretch;
}


/*align-self: auto | flex-start | flex-end | center | baseline | stretch;*/

.item.align-self-auto {
  -webkit-align-self: auto;
  -ms-flex-item-align: auto;
  align-self: auto;
}

.item.align-self-start {
  -webkit-align-self: flex-start;
  -ms-flex-item-align: start;
  align-self: flex-start;
}

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

.item.align-self-center {
  -webkit-align-self: center;
  -ms-flex-item-align: center;
  align-self: center;
}

.item.align-self-baseline {
  -webkit-align-self: baseline;
  -ms-flex-item-align: baseline;
  align-self: baseline;
}

.item.align-self-stretch {
  -webkit-align-self: stretch;
  -ms-flex-item-align: stretch;
  align-self: stretch;
}

.item.flex-grow1 {
  flex-grow: 1;
}

.item.flex-grow2 {
  flex-grow: 2;
}

.item.flex-grow3 {
  flex-grow: 3;
}

.item.flex-grow4 {
  flex-grow: 4;
}
html,body{ width:100%; min-height:100%; margin:0; padding:0; color:#ddd; font-size:14px; font-family:Verdana, Geneva, sans-serif;background-color:#333;}
*{
	box-sizing : border-box; 
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale; 
}
.principal{ width:calc(50% - 40px); min-width:525px; margin:0 20px 20px 20px; float:left;}
.radio{ margin-bottom:20px;}
label{ line-height:200%;}
input[type=radio] { color:white; }
input[type=radio]:checked + label { color:orange; }
input[type=number]{ width:40px; margin-right:.5em;}
h1{ font-size:200%;margin:20px;}
h2{ font-size:180%;margin:0px;}
h4 a{ font-variant:small-caps; font-size:120%; color:#ddd; text-decoration:none;}
h4 small{font-variant: normal; font-size:80%; font-weight:normal; color:#57bcdb;}
table{ width:100%; margin-bottom:1em;}
table td{ width:50%; padding:3px;}
.principal:last-of-type h4 small{ color:#ff8080;}
.flex-container {
 border: 1px solid #555;
 display : -webkit-flex;
 display : -ms-flexbox;
 display : flex;
 padding:20px;
 width:100%; 
 }
.item{
	margin:0; 
    display : inherit;
	padding:10px; 
	width:100px; 
	height:100px;
	-webkit-align-items: center;
	-ms-flex-align:center;
	align-items: center;
	}
.item p{width:100%; text-align:center; color:#fff;}
#direction .item{flex-wrap:wrap;}
/*#wrap .item{ height:auto;}*/
#wrap{ width:400px;}
#align .item{height:auto; height:auto;flex-wrap:wrap;}	
#align{ height:300px;}
#justify{ margin:20px 0; padding:20px 0;}
#alignContent{flex-wrap:wrap; height:600px;}
#alignContent .item{ height:auto;} 
#FCI1{ height:300px;}
#FCI1 .item{ height:auto;}
#FCI3 .item{ width:25%;}
#FCI4 .item{ width:50%;}
#FCI5 .item{ width:20%;}
.nbsp{white-space: nowrap;}

@media only screen and (max-width:1100px){.principal{ width:calc(100% - 40px);}}
@media only screen and (max-width:580px) {
.item{ width:50px;height:50px;}
.principal{ width:calc(100% - 40px); min-width:initial;}
.flex-container{width:100%; min-width:initial;}	
#wrap{ width:200px;}
}
function changeFlex(e, t) {
  for (var n = document.querySelectorAll("." + e), l = document.querySelector("#" + t), r = 0; r < n.length; r++) n[r].addEventListener("change", function() {
    var e = this.value;
    l.setAttribute("class", "flex-container " + e)
  }, !1)
}

function changeItemFlex(e, t) {
  for (var n = document.querySelectorAll("." + e), l = document.querySelector("#" + t), r = 0; r < n.length; r++) n[r].addEventListener("change", function() {
    var e = this.value;
    l.setAttribute("class", "item " + e)
  }, !1)
}

function changeFlexBasis(e, t) {
  var n = isNaN(e.value) ? 0 : e.value;
  console.log("B: " + n), document.querySelector("#" + t).style.WebkitFlexBasis = n + "%", document.querySelector("#" + t).style.flexBasis = n + "%"
}

function changeFlexGrow(e, t) {
  var n = isNaN(e.value) ? 0 : e.value;
  console.log("G: " + n), document.querySelector("#" + t).style.WebkitFlexGrow = n, document.querySelector("#" + t).style.flexGrow = n
}

function changeFlexShrink(e, t) {
  var n = isNaN(e.value) ? 0 : e.value;
  console.log("S: " + n), document.querySelector("#" + t).style.WebkitFlexShrink = n, document.querySelector("#" + t).style.flexShrink = n
}

function changeFlexOrder(e, t) {
  var n = isNaN(e.value) ? 0 : e.value;
  console.log("O: " + n), document.querySelector("#" + t).style.WebkitOrder = n, document.querySelector("#" + t).style.order = n
}

function changeAll(e, t, n, l) {
  changeFlexBasis(e, l), changeFlexGrow(t, l), changeFlexShrink(n, l)
}
for (var items = document.querySelectorAll(".item"), i = 0; i < items.length; i++)
  if (items[i].hasAttribute("data-color")) {
    var color = items[i].getAttribute("data-color");
    items[i].style.backgroundColor = "#" + color
  }
for (var flexO = document.querySelectorAll(".flex-order"), o = 0; o < flexO.length; o++) flexO[o].addEventListener("change", function() {
  changeFlexOrder(this, "order" + this.id)
}, !1);
changeFlex("flex-direction", "direction"), changeFlex("flex-wrap", "wrap"), changeFlex("flex-align-items", "align"), changeFlex("justify-content", "justify"), changeFlex("align-content", "alignContent"), changeItemFlex("align-self", "alignSelf");
for (var flexGrow = document.querySelectorAll(".flex-grow"), i = 0; i < flexGrow.length; i++) flexGrow[i].addEventListener("change", function() {
  var e = "item" + this.id;
  changeFlexGrow(this, e)
});
for (var flexShrink = document.querySelectorAll(".flex-shrink"), j = 0; j < flexShrink.length; j++) flexShrink[j].addEventListener("change", function() {
  var e = "item" + this.id;
  changeFlexShrink(this, e)
});
var B1 = document.querySelector("#B1"),
  G1 = document.querySelector("#G1"),
  S1 = document.querySelector("#S1"),
  B2 = document.querySelector("#B2"),
  G2 = document.querySelector("#G2"),
  S2 = document.querySelector("#S2");
B1.addEventListener("change", function() {
  changeAll(B1, G1, S1, "item1")
}), G1.addEventListener("change", function() {
  changeAll(B1, G1, S1, "item1")
}), S1.addEventListener("change", function() {
  changeAll(B1, G1, S1, "item1")
}), B2.addEventListener("change", function() {
  changeAll(B2, G2, S2, "item2")
}), G2.addEventListener("change", function() {
  changeAll(B2, G2, S2, "item2")
}), S2.addEventListener("change", function() {
  changeAll(B2, G2, S2, "item2")
});
Run Pen

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.