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          Flex布局-骰子demo
          
				
           2018-4-20      seo達人      
          
			
          
			
          
				
          
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        最近學習了Flex布局，
    
          
    
          
        以下是阮一峰老師關于Flex的博客  。在此感謝他讓我get一項新技能！
    
          
Flex語法篇：http://www.ruanyifeng.com/blog/2015/07/flex-grammar.html
          
    
          
        Flex實戰篇：http://www.ruanyifeng.com/blog/2015/07/flex-examples.html
    
          
    
          
        1、色子數：1
    
          
    
          
        
    
          
    
          
        思路：讓圓點（即子元素）在橫軸上居中在豎軸上居中，分別用justify-content和align-items
    
          
    
          
        實現代碼：
    
          

          <!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style> *{  margin:0;  padding:0;  }  body{  background:#000;  }  .main {  width: 200px;  height: 200px;  background: #fff;  border-radius: 20px;  margin: 100px auto;  padding: 25px;  -webkit-box-sizing: border-box;  -moz-box-sizing: border-box;  box-sizing: border-box;  display: flex;  justify-content: center;  align-items:center;  }  .main >div{  width:40px;  height:40px;  background:#000;  border-radius:40px;  }  </style>
</head>
<body>
<div class="main">
    <div class="item"></div>
</div>
</body>
</html>
          
2、色子數：2
    
          
        
    
          
    
          
        思路：豎列布局且在主軸方向采用justify-content的兩端對齊布局，這樣兩個圓點會在左邊呈現，然后采用align-items讓其居中
    
          
    
          
        實現代碼：
    
          

          <!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style> *{  margin:0;  padding:0;  }  body{  background:#000;  }  .main {  width: 200px;  height: 200px;  background: #fff;  border-radius: 20px;  margin: 100px auto;  padding: 25px;  -webkit-box-sizing: border-box;  -moz-box-sizing: border-box;  box-sizing: border-box;  display: flex;  flex-direction: column;  justify-content: space-between;  align-items:center;  }  .main >div{  width:40px;  height:40px;  background:#000;  border-radius:40px;  }  </style>
</head>
<body>
<div class="main">
    <div class="item"></div>
    <div class="item"></div>
</div>
</body>
</html>
          
3、色子數：3
    
          
        
    
          
    
          
        思路：用到align-self屬性讓第二個和第三個圓點有自己的屬性設置，分別在縱軸方向上居中和低端對齊
    
          
    
          
        實現代碼：
    
          

          <!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style> *{  margin:0;  padding:0;  }  body{  background:#000;  }  .main {  width: 180px;  height: 180px;  background: #fff;  border-radius: 20px;  margin: 100px auto;  padding: 25px;  -webkit-box-sizing: border-box;  -moz-box-sizing: border-box;  box-sizing: border-box;  display: flex;  }  .main >div{  width:40px;  height:40px;  background:#000;  border-radius:40px;  }  .item:nth-child(2){  align-self:center;  }  .item:nth-child(3){  align-self:flex-end;  }  </style>
</head>
<body>
<div class="main">
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
</div>
</body>
</html>
          
4、色子數：4
    
          
        
    
          
    
          
        思路：先豎著放兩行圓點，每行圓點里橫著放兩個圓點，所以最外層父元素設置align，里面的父元素設置justify-content
    
          
    
          
        實現代碼：
    
          

          <!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style> *{  margin:0;  padding:0;  }  body{  background:#000;  }  .main {  width: 180px;  height: 180px;  background: #fff;  border-radius: 20px;  margin: 100px auto;  padding: 25px;  -webkit-box-sizing: border-box;  -moz-box-sizing: border-box;  box-sizing: border-box;  display: flex;  flex-wrap:wrap;  align-content:space-between;  }  .column >div{  width:40px;  height:40px;  background:#000;  border-radius:40px;  }  .column{  flex-basis:100%;  display:flex;  justify-content: space-between;  }  </style>
</head>
<body>
<div class="main">
    <div class="column">
        <div class="item"></div>
        <div class="item"></div>
    </div>
    <div class="column">
        <div class="item"></div>
        <div class="item"></div>
    </div>
</div>
</body>
</html>
          
5、色子數：5
    
          
        
    
          
    
          
        實現代碼：
    
          

          <!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style> *{  margin:0;  padding:0;  }  body{  background:#000;  }  .main {  width: 180px;  height: 180px;  background: #fff;  border-radius: 20px;  margin: 100px auto;  padding: 25px;  -webkit-box-sizing: border-box;  -moz-box-sizing: border-box;  box-sizing: border-box;  display: flex;  flex-wrap:wrap;  align-content:space-between;  }  .column > div{  width:40px;  height:40px;  background:#000;  border-radius:40px;  }  .column{  flex-basis:100%;  display:flex;  justify-content: space-between;  }  .column:nth-child(2){  justify-content: center;  }  </style>
</head>
<body>
<div class="main">
    <div class="column">
        <div class="item"></div>
        <div class="item"></div>
    </div>
    <div class="column">
    <div class="item"></div>
    </div>
    <div class="column">
        <div class="item"></div>
        <div class="item"></div>
    </div>
</div>
</body>
</html>
          
6、色子數：6
    
          
        
    
          
    
          
        思路：跟四點的一樣，先豎放三行在每行橫放兩個圓點
    
          
    
          
        實現代碼：
    
          

          <!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style> *{  margin:0;  padding:0;  }  body{  background:#000;  }  .main {  width: 180px;  height: 180px;  background: #fff;  border-radius: 20px;  margin: 100px auto;  padding: 15px;  -webkit-box-sizing: border-box;  -moz-box-sizing: border-box;  box-sizing: border-box;  display: flex;  align-content:space-between;  flex-wrap:wrap;  }  .column > div{  width:40px;  height:40px;  background:#000;  border-radius:40px;  }  .column{  flex-basis:100%;  display:flex;  justify-content: space-between;  }  </style>
</head>
<body>
<div class="main">
    <div class="column">
        <div class="item"></div>
        <div class="item"></div>
    </div>
    <div class="column">
        <div class="item"></div>
        <div class="item"></div>
    </div>
    <div class="column">
        <div class="item"></div>
        <div class="item"></div>
    </div>

</div>
</body>
</html>
          
    
          
        
          
    
          
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