flexbox的学习,display:flex display:box 淘宝触屏版、饿了么网布局分析分析
Flex 布局教程:语法篇
http://www.ruanyifeng.com/blog/2015/07/flex-grammar.html
父:
display:flex;
父属性设置
- flex-direction:
row | row-reverse | column | column-reverse;
- flex-wrap:nowrap | wrap | wrap-reverse;
- flex-flow: <flex-direction> || <flex-wrap>;
- justify-content:
flex-start | flex-end | center | space-between | space-around;
- align-items:
flex-start | flex-end | center | baseline | stretch;
- align-content:
flex-start | flex-end | center | space-between | space-around | stretch;
子属性设置
order:number 越小越前
flex-grow :0 无变化 剩余长度按比例分配
flex-shrink:0 无变化 按比例缩小
flex-basis :auto /固定的值
[ <'flex-grow'> <'flex-shrink'>? || <'flex-basis'> ]flex:none
align-self:
auto | flex-start | flex-end | center | baseline | stretch;
子元素上下的对其方式
https://www.cnblogs.com/whiteMu/p/5378747.html
一、display:box;
在元素上设置该属性,可使其子代排列在同一水平上,类似display:inline-block;。
二、可在其子代设置如下属性
前提:使用如下属性,必须在父代设置display:box;
1.box-flex:number;
1)占父级元素宽度的number份
2)若子元素设置固定宽度,则该子元素应用固定宽度,其他未设置固定宽度的字元素将余下的父级宽度(父级-已设置固定宽度的子代元素的总宽度按 number占份数
3)若子元素有margin值,则按余下(父级宽度-子代固定总宽度-总margin值)宽度占number份
2.box-orient:horizontal/vertical
在父级上设置该属性,则子代按水平排列或竖直排列。
注:所有主流浏览器不支持该属性,必须加上前缀。
1)horizontal 水平排列,子代总width=父级width。若父级固定宽度,则子代设置的width无效,子代会撑满父级宽度。
2)vertical 垂直排列,子代总height=父级height。若父级固定高度,则子代设置的height无效,子代会撑满父级高度。
3.box-direction:normal/reverse
在父级上设置该属性,确认子代的排列顺序。
1)normal 默认值,子代按html顺序排列
2)reverse 反序
4.box-align:start/end/center/stretch
在父级设置,子代的垂直对齐方式。
1)start 垂直顶部对齐
2)end 垂直底部对齐
3)center 垂直居中对齐
4)stretch 拉伸子代的高度,与父级设置的高度一致。子代height无效。
5.box-pack:start/end/center
在父级设置,子代的水平对齐方式。
1)start 水平左对齐
2)end 水平右对齐
3)center 水平居中对齐
display:-ms-flexbox https://msdn.microsoft.com/en-us/library/hh673531(v=vs.85).aspx
-ms-flex-direction: row|row-reverse|column|column-reverse
-ms-flex-align:start|end|center|stretch|baseline =flex的align-items
-ms-flex-pack:start|end|cener|justify =flex的justify-content
-ms-flex-wrap:nowrap|wrap|wrap-reverse
-ms-flex:<positive-flex> <negative-flex> <preferred-size> =flex的flex
-ms-flex-order: =flex的order
1、实现淘宝中这些条目的布局
类似实现的代码:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <style> *{ margin:0;padding:0; } html{font-size:32px;} .item-content{ display: -webkit-box; display: -moz-box; display: -ms-flexbox; display: -webkit-flex; display: flex; -webkit-box-orient: vertical; -webkit-box-direction: normal; -moz-box-orient: vertical; -moz-box-direction: normal; -webkit-flex-direction: column; -ms-flex-direction: column; flex-direction: column; box-sizing: border-box; line-height: 0; width: 10rem; height: 4.594rem; background-color: rgb(255, 255, 255); margin:0 auto; } .item-small{ display: -webkit-box; display: -moz-box; display: -ms-flexbox; display: -webkit-flex; display: flex; -webkit-box-orient: horizontal; -webkit-box-direction: normal; -moz-box-orient: horizontal; -moz-box-direction: normal; -webkit-flex-direction: row; -ms-flex-direction: row; flex-direction: row; box-sizing: border-box; line-height: 0; width:10rem; height:2rem; background-color: green; } .item{ width:2rem; height:2rem; box-sizing: border-box; border:10px solid #fff; } .item:nth-child(odd){ background-color:red; } .item:nth-child(even){ background-color:green; } </style> </head> <body> <div class="item-content"> <div class="item-small"> <div class="item"></div> <div class="item"></div> <div class="item"></div> <div class="item"></div> <div class="item"></div> </div> <div class="item-small"> <div class="item"></div> <div class="item"></div> <div class="item"></div> <div class="item"></div> <div class="item"></div> </div> </div> </body> </html>
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实际效果: