给定以下HTML:
< div id = "容器" > <!——这里的其他元素——> < div id =“版权”> 版权所有Foo网页设计 < / div > < / div >
我想把#copyright贴在#container的底部。我能在不使用绝对定位的情况下实现这一点吗?
给定以下HTML:
< div id = "容器" > <!——这里的其他元素——> < div id =“版权”> 版权所有Foo网页设计 < / div > < / div >
我想把#copyright贴在#container的底部。我能在不使用绝对定位的情况下实现这一点吗?
当前回答
CSS中没有所谓的float:bottom。最好的方法是在这种情况下使用定位:
position:absolute;
bottom:0;
其他回答
对于容器中只有一个子div的容器,可以使用表格单元格和垂直对齐方法,这种方法可以可靠地将单个div定位在父div的底部。
注意,使用table-footer-group作为前面提到的其他答案将破坏父表的高度计算。
#{容器 显示:表; 宽度:100%; 身高:200 px; } #{项 显示:表格单元; vertical-align:底部; } < div id = "容器" > <div id="item">单个底部项目</div> < / div >
为#copyright上面的元素创建另一个容器div。就在版权上面添加一个新的div: < div风格= "明确:;" > < / div > 它将强制页脚位于其他所有内容的下面,就像使用相对定位(bottom:0px;)的情况一样。
针对此特定场景的解决方案:
将inner放在父元素的底部。父节点的高度由它的“最高”兄弟节点的高度设置
设置:
我有一行与多个<div class="容器"> 这些<div class="container">在另一个<div class="supercontainer">中彼此相邻 每个<div class="container">都有3个内部div相互重叠:<div class="title">, <div class="content">, <div class="footer">
期望的结果:
所有<div class="container">的高度相同。高度没有在px中定义,它将是其中“最高”的高度。 <div class="title">应该在<div class="container">的顶部 <div class="content">应该放在<div class="title">下面 <div class="footer">应该放在<div class="container">的底部,而不与前面的内容重叠
这是当前状态:https://codepen.io/xavier-atero/pen/ExvWQww
.supercontainer { border: solid 1px black; display: flex; } .container, .other-container { position: relative; border: solid 1px red; width: 200px; margin: 10px; } .title { margin: 10px; border: solid 1px blue; } .content { margin: 10px; border: solid 1px cyan; } .footer { margin: 10px; background: lime; } <body> <div class="supercontainer"> <div class="container"> <div class="title"> This part represents the title and it is placed on top </div> <div class="content"> This one represents the body and it is placed below the title </div> <div class="footer"> And this one is the footer. It should always be at the bottom of the container </div> </div> <div class="other-container"> <div class="title"> This part represents the title and it is placed on top. </div> <div class="content"> This one represents the body and it is placed below the title. This one is longer than the first one to stretch the parent div. Since it is longer, the footers of the two containers are not alinged. </div> <div class="footer"> And this one is the footer. It should always be at the bottom of the container </div> </div> </div> </body>
__________解决方案与FLEXBOX __________
这是结果:https://codepen.io/xavier-atero/pen/MWvpBMz
.supercontainer { border: solid 1px black; display: flex; } .container, .other-container { position: relative; border: solid 1px red; width: 200px; margin: 10px; display: flex; flex-direction: column; } .title { margin: 10px; border: solid 1px blue; } .content { margin: 10px; border: solid 1px cyan; } .footer { margin: 10px; background: lime; margin-top: auto; border: solid 1px fuchsia; } <body> <div class="supercontainer"> <div class="container"> <div class="title"> This part represents the title and it is placed on top </div> <div class="content"> This one represents the body and it is placed below the title </div> <div class="footer"> And this one is the footer. It should always be at the bottom of the container </div> </div> <div class="other-container"> <div class="title"> This part represents the title and it is placed on top. </div> <div class="content"> This one represents the body and it is placed below the title. This one is longer than the first one to stretch the parent div. Since it is longer, the footers of the two containers are not alinged. </div> <div class="footer"> And this one is the footer. It should always be at the bottom of the container </div> </div> </div> </body>
__________带有TABLE-ROW __________的解决方案
这是结果:https://codepen.io/xavier-atero/pen/rNzyKJm
.supercontainer { border: solid 1px black; display: flex; } .container, .other-container { position: relative; border: solid 1px red; width: 200px; margin: 10px; border-collapse:collapse; display : table; } .title { margin: 10px; border: solid 1px blue; } .content { margin: 10px; border: solid 1px cyan; } .footer { margin: 10px; background: lime; border: solid 1px fuchsia; display: table-row; vertical-align: bottom; height: 1px; } <body> <div class="supercontainer"> <div class="container"> <div class="title"> This part represents the title and it is placed on top </div> <div class="content"> This one represents the body and it is placed below the title </div> <div class="footer"> And this one is the footer. It should always be at the bottom of the container </div> </div> <div class="other-container"> <div class="title"> This part represents the title and it is placed on top. </div> <div class="content"> This one represents the body and it is placed below the title. This one is longer than the first one to stretch the parent div. Since it is longer, the footers of the two containers are not alinged. </div> <div class="footer"> And this one is the footer. It should always be at the bottom of the container </div> </div> </div> </body>
纯CSS,没有绝对定位,没有固定高度,跨浏览器(IE9+)
看看那个工作小提琴
因为正常的流程是“从上到下”,我们不能简单地要求#copyright div粘到他的父端的底部而没有某种绝对的定位,但如果我们想要#copyright div粘到他的父端的顶部,这将是非常简单的-因为这是正常的流程方式。
所以我们要利用这一点。 我们将改变div在HTML中的顺序,现在#copyright div在顶部,内容紧随其后。 我们还让内容div一直延伸(使用伪元素和清除技术)
现在只需要将视图中的顺序颠倒过来。这可以很容易地用CSS转换。
我们把容器旋转180度,现在:向上就是向下。(我们将内容反向,使其看起来正常)
如果我们想在内容区域内有一个滚动条,我们需要应用更多的CSS魔法。如图所示[在这个例子中,内容在标题下面-但它的想法是一样的]
* { margin: 0; padding: 0; } html, body, #Container { height: 100%; color: white; } #Container:before { content: ''; height: 100%; float: left; } #Copyright { background-color: green; } #Stretch { background-color: blue; } #Stretch:after { content: ''; display: block; clear: both; } #Container, #Container>div { -moz-transform: rotateX(180deg); -ms-transform: rotateX(180deg); -o-transform: rotate(180deg); -webkit-transform: rotateX(180deg); transform: rotateX(180deg); } <div id="Container"> <div id="Copyright"> Copyright Foo web designs </div> <div id="Stretch"> <!-- Other elements here --> <div>Element 1</div> <div>Element 2</div> </div> </div>
CSS网格
由于CSS Grid的使用正在增加,我想建议align-self到网格容器内的元素。
Align-self可以包含任何值:end, self-end, flex-end,如下例所示。
#{母公司 显示:网格; } # child1 { align-self:结束; } /*额外的样式片段*/ #{母公司 身高:150 px; 背景:# 5548 b0; 颜色:# fff; 填充:10 px; 字体类型:无衬线; } # child1 { 高度:50 px; 宽度:50 px; 背景:# 6 a67ce; text-align:中心; vertical-align:中间; 行高:50 px; } < div id = "父" > <!——这里的其他元素——> " child1 " < div id = > 1 < / div > < / div >