CSS3 学习Flexbox特性的在线实验室

Flexbox playground 可以在线调整Flexbox的各个属性值，来直接查看结果。是一个很棒的学习弹性布局功能的在线资源。

css3, flexbox，教程

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HTML
CSS
JavaScript
Result

编译

JavaScript

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
}

编译

CSS

/*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;
    }
}

HTML

<div class="control">
        <h4><a href="https://w3.unpocodetodo.info/css3/flex-wrap.php">flex-wrap</a> <small>( property of the flex container  )</small></h4>
        
        <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="https://w3.unpocodetodo.info/css3/flex-align-items.php">align-items</a> <small>( property of the flex container  )</small></h4>
        
        <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="https://w3.unpocodetodo.info/css3/flex-justify-content.php">justify-content</a> <small>( property of the flex container )</small></h4>
        
        <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>

<div class="control">
        <h4><a href="https://w3.unpocodetodo.info/css3/flex-align-content.php">align-content</a> <small>( property of the flex container  )</small></h4>
        
        <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>

<div class="principal">
    <h2>Propertyes for the flex items </h2>
    <div class="control">
        <h4><a href="https://w3.unpocodetodo.info/css3/flex-align-self.php">align-self</a> <small>( property for flex items  )</small></h4>
        
        <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>

<div class="control">
        <h4><a href="https://w3.unpocodetodo.info/css3/flex-abreviado.php#flexGrow">flex-grow</a> <small>( property for flex items )</small></h4>
        
        <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>

<div class="control">
        <h4><a href="https://w3.unpocodetodo.info/css3/flex-abreviado.php#flexShrink">flex-shrink</a> <small>( property for flex items )</small></h4>
        
        <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>

<div class="control">
        <h4><a href="https://w3.unpocodetodo.info/css3/flex-abreviado.php">flex</a> <small>( property for flex items )</small></h4>
        
        <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>

<div class="control">
        <h4><a href="https://w3.unpocodetodo.info/css3/flex-order.php">order</a> <small>( property for flex items )</small></h4>
        
        <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>

Flexbox playground 可以在线调整Flexbox的各个属性值，来直接查看结果。是一个很棒的学习弹性布局功能的在线资源。

css3, flexbox，教程

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快捷键

Flexbox playground 可以在线调整Flexbox的各个属性值，来直接查看结果。是一个很棒的学习弹性布局功能的在线资源。

css3, flexbox，教程

使用CSS3弹性框（Flexbox）实现的标签栏控件

使用CSS3线性渐变和合成模式（blend-mode）实现的5种图像特效

编辑器支持Emmet

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