# flex布局案例-骰子
可用F12开发者工具查看元素及样式，可打开codepen在线编辑代码。
::: demo [vanilla]
<html>
<div class="box2">
<div class="first-face">
<span class="pip"></span>
</div>
<div class="second-face">
<span class="pip"></span>
<span class="pip"></span>
</div>
<div class="third-face">
<span class="pip"></span>
<span class="pip"></span>
<span class="pip"></span>
</div>
<div class="fourth-face">
<div class="column">
<span class="pip"></span>
<span class="pip"></span>
</div>
<div class="column">
<span class="pip"></span>
<span class="pip"></span>
</div>
</div>
<div class="fifth-face">
<div class="column">
<span class="pip"></span>
<span class="pip"></span>
</div>
<div class="column">
<span class="pip"></span>
</div>
<div class="column">
<span class="pip"></span>
<span class="pip"></span>
</div>
</div>
<div class="sixth-face">
<div class="column">
<span class="pip"></span>
<span class="pip"></span>
<span class="pip"></span>
</div>
<div class="column">
<span class="pip"></span>
<span class="pip"></span>
<span class="pip"></span>
</div>
</div>
</div>
</html>
<style>
/* 一 */
.first-face { /* 形成上下左右居中 */
display: flex;
/* 项目在主轴上居中 */
justify-content: center;
/* 项目在交叉轴上居中 */
align-items: center;
}
/* 二 */
.second-face {
display: flex;
/* 两侧对齐 */
justify-content: space-between;
}
.second-face .pip:nth-of-type(2) {
/* 居下 */
align-self: flex-end;
}/* 三 */
.third-face {
display: flex;
/* 两侧对齐 */
justify-content: space-between;
}
.third-face .pip:nth-of-type(2) {
/* 居中 */
align-self: center;
}
.third-face .pip:nth-of-type(3) {
/* 居下 */
align-self: flex-end;
}
/* 四 、六*/
.fourth-face,
.sixth-face {
display: flex;
/* 两侧对齐 */
justify-content: space-between;
}
.fourth-face .column,
.sixth-face .column {
display: flex;
/* 纵向排列 */
flex-direction: column;
/* 两侧对齐 */
justify-content: space-between;
}
/* 五 */
.fifth-face {
display: flex;
/* 两侧对齐 */
justify-content: space-between;
}
.fifth-face .column {
display: flex;
/* 纵向排列 */
flex-direction: column;
/* 两侧对齐 */
justify-content: space-between;
}
.fifth-face .column:nth-of-type(2) {
/* 居中对齐 */
justify-content: center;
}
/* 基础样式 */
.box2 {
display: flex;
/* 项目在交叉轴上居中 */
align-items: center;
/* 项目在主轴上居中 */
justify-content: center;
vertical-align: center;
/* 允许项目换行 */
flex-wrap: wrap; /* 项目是多行时以交叉轴中心对齐 */
align-content: center;
font-family: 'Open Sans', sans-serif;
}
/* 类名包含face的元素 */
[class$="face"] {
margin: 5px;
padding: 4px; background-color: #e7e7e7;
width: 104px;
height: 104px;
object-fit: contain; box-shadow:
inset 0 5px white,
inset 0 -5px #bbb,
inset 5px 0 #d7d7d7,
inset -5px 0 #d7d7d7; border-radius: 10%;
}
.pip {
display: block;
width: 24px;
height: 24px;
border-radius: 50%;
margin: 4px; background-color: #333;
box-shadow: inset 0 3px #111, inset 0 -3px #555;
}
</style>
:::
参考：http://www.ruanyifeng.com/blog/2015/07/flex-examples.html (opens new window)