各种flex布局，拿来即用用过的都说好

开发过程中，很多布局，用antd的栅格还是不灵活，flex弹性布局会更好用

Flex 是 Flexible Box 的缩写，意为"弹性布局"，用来为盒状模型提供最大的灵活性。

注意，设为 Flex 布局以后，子元素的float、clear和vertical-align属性将失效。

容器属性

1. flex-direction  排列方向
2. flex-wrap  排不下，如何换行
3. flex-flow  1和2的简写
4. justify-content  主轴对齐
5. align-item 交叉轴对齐
6. align-content 多轴线对齐

项目属性

1. order  数值越小，越靠前
2. flex-grow  项目放大
3. flex-shrink  项目缩小
4. flex-basis   定宽或定高（同事说他面试都会问一个问题，两列，一列定宽，但是不能用width定义，另一列自适应，怎么写，就用这个属性）
5. flex  2/3/4的简写
6. align-self 单个项目与其他项目不一样的排列方式，下次写代码可以试试这个

• 左边块 div 左右布局，姓名职位上下布局，定义line-height
• 右边用下面的样式 col_center_middle
• 代码在文章末尾

 以下为拿来即用公用flex类

.display-none {
    display: none !important;
  }

  .visibility-hidden {
    visibility: hidden;
  }

.flex-top {
display: -webkit-flex;
display: -ms-flexbox;
display: flex;
-webkit-align-items: flex-start;
-ms-align-items: flex-start;
align-items: flex-start;
}

.center {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-justify-content: center;
  -ms-justify-content: center;
  justify-content: center;
}

.col-middle {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.col-center-middle {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  flex-direction: column;
  -webkit-justify-content: center;
  -ms-justify-content: center;
  justify-content: center;
  align-items: center;
}

.center-middle {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex !important;
  -webkit-align-items: center;
  -ms-align-items: center;
  align-items: center;
  -webkit-justify-content: center;
  -ms-justify-content: center;
  justify-content: center;
}

.space-between {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-justify-content: space-between;
  -ms-justify-content: space-between;
  justify-content: space-between;
}

.col-space-between {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-justify-content: space-between;
  -ms-justify-content: space-between;
  justify-content: space-between;
  flex-direction: column;
}

.space-around {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-justify-content: space-around;
  -ms-justify-content: space-around;
  justify-content: space-around;
}

.right {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-justify-content: flex-end !important;
  -ms-justify-content: flex-end !important;
  justify-content: flex-end !important;
}

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

.cursor-pointer {
  cursor: pointer;
}

  .common-shadow {
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.07);
  }

  .str-ellipsis{
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .str-ellpsis_2, .str-ellpsis_3 {
    display: -webkit-box;
    -webkit-box-orient: vertical!important;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .str-ellpsis-2 {
    -webkit-line-clamp: 2; /*显示行数*/
  }

  .str-ellpsis-3 {
    -webkit-line-clamp: 3; /*显示行数*/
  }

  .middle {
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex!important;
    -webkit-align-items: center;
    -ms-align-items: center;
    align-items: center;
  }

代码如下：

<div class="avatar-wrapper">
            <img :src="Avatar" class="user-avatar">
            <div class="user">
              <div class="name">姓名</div>
              <div class="title" style="font-size:12px">职位</div>
            </div>
</div>

  .avatar-wrapper {
        display: -webkit-flex;
        display: -ms-flexbox;
        display: flex;
        -webkit-align-items: flex-start;
        -ms-align-items: flex-start;
        align-items: flex-start;
        margin-top: 12px;
        position: relative;

        .user-avatar {
          cursor: pointer;
          width: 35px;
          height: 35px;
          border-radius: 10px;
        }
      }

 .user {
      line-height: 40px;
      height: 40px;
      color: #fff;
      padding-left: 6px;
      .name {
        font-size: 14px;
        line-height: 20px;
        height: 20px;
        font-weight: 400;
        color: rgba(255, 255, 255, 0.85);
      }
      .title {
        font-size: 12px;
        line-height: 17px;
        height: 17px;
        font-weight: 400;
        color: rgba(255, 255, 255, 0.85);
      }
    }

阮一峰  Flex 布局教程：语法篇

http://www.ruanyifeng.com/blog/2015/07/flex-grammar.html?utm_source=tuicool