Flexbox - 对齐项目
align-items属性与justify content相同。但在这里,项目在交叉访问上(垂直)对齐。
用法-
align-items: flex-start | flex-end | center | baseline | stretch;
该属性接受以下值 -
flex-start - Flex 项目在容器顶部垂直对齐。
flex-end - 弹性项目在容器底部垂直对齐。
flex-center - 弹性项目在容器的中心垂直对齐。
拉伸- 弹性项目垂直对齐,以便它们填满容器的整个垂直空间。
基线- 弹性项目对齐,使其文本的基线沿水平线对齐。
弹性启动
将此值传递给属性align-items后,弹性项目在容器顶部垂直对齐。
以下示例演示了将值flex-start传递给align-items属性的结果。
<!doctype html> <html lang = "en"> <style> .box1{background:green;} .box2{background:blue;} .box3{background:red;} .box4{background:magenta;} .box5{background:yellow;} .box6{background:pink;} .box{ font-size:35px; padding:15px; } .container{ display:flex; height:100vh; align-items:flex-start; } </style> <body> <div class = "container"> <div class = "box box1">One</div> <div class = "box box2">two</div> <div class = "box box3">three</div> <div class = "box box4">four</div> <div class = "box box5">five</div> <div class = "box box6">six</div> </div> </body> </html>
它将产生以下结果 -
柔性端
将此值传递给属性align-items后,弹性项目将在容器底部垂直对齐。
以下示例演示了将值flex-end传递给align-items属性的结果。
<!doctype html> <html lang = "en"> <style> .box1{background:green;} .box2{background:blue;} .box3{background:red;} .box4{background:magenta;} .box5{background:yellow;} .box6{background:pink;} .box{ font-size:35px; padding:15px; } .container{ display:flex; height:100vh; align-items:flex-end; } </style> <body> <div class = "container"> <div class = "box box1">One</div> <div class = "box box2">two</div> <div class = "box box3">three</div> <div class = "box box4">four</div> <div class = "box box5">five</div> <div class = "box box6">six</div> </div> </body> </html>
它将产生以下结果 -
中心
将此值传递给属性align-items后,弹性项目将在容器的中心垂直对齐。
以下示例演示了将值flex-center传递给align-items属性的结果。
<!doctype html> <html lang = "en"> <style> .box1{background:green;} .box2{background:blue;} .box3{background:red;} .box4{background:magenta;} .box5{background:yellow;} .box6{background:pink;} .box{ font-size:35px; padding:15px; } .container{ display:flex; height:100vh; align-items:center; } </style> <body> <div class = "container"> <div class = "box box1">One</div> <div class = "box box2">two</div> <div class = "box box3">three</div> <div class = "box box4">four</div> <div class = "box box5">five</div> <div class = "box box6">six</div> </div> </body> </html>
它将产生以下结果 -
拉紧
将此值传递给属性align-items时,弹性项目会垂直对齐,以便它们填满容器的整个垂直空间。
以下示例演示了将值stretch传递给align-items属性的结果。
<!doctype html> <html lang = "en"> <style> .box1{background:green;} .box2{background:blue;} .box3{background:red;} .box4{background:magenta;} .box5{background:yellow;} .box6{background:pink;} .box{ font-size:35px; padding:15px; } .container{ display:flex; height:100vh; align-items:stretch; } </style> <body> <div class = "container"> <div class = "box box1">One</div> <div class = "box box2">two</div> <div class = "box box3">three</div> <div class = "box box4">four</div> <div class = "box box5">five</div> <div class = "box box6">six</div> </div> </body> </html>
它将产生以下结果 -
基线
将此值传递给属性align-items时,Flex-items将进行对齐,使其文本的基线沿水平线对齐。
以下示例演示了将值基线传递给align-items属性的结果。
<!doctype html> <html lang = "en"> <style> .box1{background:green;} .box2{background:blue;} .box3{background:red;} .box4{background:magenta;} .box5{background:yellow;} .box6{background:pink;} .box{ font-size:35px; padding:15px; } .container{ display:flex; height:100vh; align-items:baseline; } </style> <body> <div class = "container"> <div class = "box box1">One</div> <div class = "box box2">two</div> <div class = "box box3">three</div> <div class = "box box4">four</div> <div class = "box box5">five</div> <div class = "box box6">six</div> </div> </body> </html>
它将产生以下结果 -