flex布局简单兼容性写法

/* 定义 */
.flex-def {
  display: -webkit-box; /* 老版本语法: Safari, iOS, Android browser, older WebKit browsers. */
  display: -moz-box; /* 老版本语法: Firefox (buggy) */
  display: -ms-flexbox; /* 混合版本语法: IE 10 */
  display: -webkit-flex; /* 新版本语法: Chrome 21+ */
  display: flex; /* 新版本语法: Opera 12.1, Firefox 22+ */
}

/* 主轴居中 */
.flex-zCenter {
  -webkit-box-pack: center;
  -moz-justify-content: center;
  -webkit-justify-content: center;
  justify-content: center;
}

/* 主轴两端对齐 */
.flex-zBetween {
  -webkit-box-pack: justify;
  -moz-justify-content: space-between;
  -webkit-justify-content: space-between;
  justify-content: space-between;
}

/* 主轴end对齐 */
.flex-zEnd {
  -webkit-box-pack: end;
  -moz-justify-content: flex-end;
  -webkit-justify-content: flex-end;
  justify-content: flex-end;
}

/* 主轴start对齐 */
.flex-zStart {
  -webkit-box-pack: start;
  -moz-justify-content: start;
  -webkit-justify-content: start;
  justify-content: start;
}

/* 侧轴居中 */
.flex-cCenter {
  -webkit-box-align: center;
  -moz-align-items: center;
  -webkit-align-items: center;
  align-items: center;
}

/* 侧轴start对齐 */
.flex-cStart {
  -webkit-box-align: start;
  -moz-align-items: start;
  -webkit-align-items: start;
  align-items: start;
}

/* 侧轴底部对齐 */
.flex-cEnd {
  -webkit-box-align: end;
  -moz-align-items: flex-end;
  -webkit-align-items: flex-end;
  align-items: flex-end;
}

/* 侧轴文本基线对齐 */
.flex-cBaseline {
  -webkit-box-align: baseline;
  -moz-align-items: baseline;
  -webkit-align-items: baseline;
  align-items: baseline;
}

/* 侧轴上下对齐并铺满 */
.flex-cStretch {
  -webkit-box-align: stretch;
  -moz-align-items: stretch;
  -webkit-align-items: stretch;
  align-items: stretch;
}

/* 主轴从上到下 */
.flex-zTopBottom {
  -webkit-box-direction: normal;
  -webkit-box-orient: vertical;
  -moz-flex-direction: column;
  -webkit-flex-direction: column;
  flex-direction: column;
}

/* 主轴从下到上 */
.flex-zBottomTop {
  -webkit-box-pack: end;
  -webkit-box-direction: reverse;
  -webkit-box-orient: vertical;
  -moz-flex-direction: column-reverse;
  -webkit-flex-direction: column-reverse;
  flex-direction: column-reverse;
}

/* 主轴从左到右 */
.flex-zLeftRight {
  -webkit-box-direction: normal;
  -webkit-box-orient: horizontal;
  -moz-flex-direction: row;
  -webkit-flex-direction: row;
  flex-direction: row;
}

/* 主轴从右到左 */
.flex-zRightLeft {
  -webkit-box-pack: end;
  -webkit-box-direction: reverse;
  -webkit-box-orient: horizontal;
  -moz-flex-direction: row-reverse;
  -webkit-flex-direction: row-reverse;
  flex-direction: row-reverse;
}

/* 是否允许子元素伸缩 */
.flex-item {
  -webkit-box-flex: 1.0;
  -moz-flex-grow: 1;
  -webkit-flex-grow: 1;
  flex-grow: 1;
}
/* 子元素的显示次序 */
.flex-order{
  -webkit-box-ordinal-group: 1;
  -moz-order: 1;
  -webkit-order: 1;
  order: 1;
}