Flex布局Flex布局父元素 display: felx | inline-felx; flex-direction: row | row-reverse | column | column-reverse; 决定主轴的方向 felx-wrap: nowrap | wrap | wrap-reverse; 主轴如何换行 felx-flow: row nowrap; justify-content: flex-start | flex-end | center | space-between | space-around; align-items: flex-start | felx-end | center | baseline | stretch; align=content: felx-start | felx-end | center | space=between | cpace-around | stretch; 多跟轴线的对齐方式,只有一条时不起作用.Flex布局子元素order: 0;项目的排列顺序,数值越小,排序越靠前,最小为0.flex-grow:0;项目的放大比例.flex-shrink:1;flex-basis: 350px;flex: 0 1 auto;align-self: auto | felx-start | flex-end | center | baseline | stretch;