如何使用css垂直对齐div [英] How to vertically align a div using css
问题描述
我知道这已经被问过很多次,但我根本不能按照这些其他主题的说明。没有什么似乎是为我工作。请检查屏幕截图,以便更好地了解我要完成的工作。此外,我添加了我的代码到这个帖子。感谢!
header {width:960px; height:90px; margin:auto; background-color:#000;}。logo {float:left; width:209px; height:54px; background-color:#ced0d8;}
< header& < div class =logo>< / div>< / header>
/ strong>
使用 position:relative;
和 top:50
和 :translateY(-50%)
你可以得到它居中,如果你不知道元素的高度,这是很好,像这样:
支持:IE9 +和所有其他浏览器, caniuse.com
header {width:960px; height:90px; margin:auto; background-color:#000;}。logo {position:relative; width:209px; height:54px; top:50%; left:0; transform:translateY(-50%); background-color:#ced0d8;}
< header& < div class =logo>< / div>< / header>
方法2 :使用 .calc()
css函数,if你知道元素的高度,像这样:
支持:IE9 +和所有其他浏览器, caniuse.com
960px; height:90px; margin:auto; background-color:#000;}。logo {position:relative; width:209px; height:54px; top:calc(50% - 27px); / * 50%父高度 - 27px是54px的高度的一半.logo * / left:0; background-color:#ced0d8;}
< header& < div class =logo>< / div>< / header>
方法3:如果您知道两个元素的高度,您可以手动减去 .logo
从父div的一半高度,所以90/2 - 54/2 = 18,像这样:
支持:所有浏览器, caniuse.com 。
header {width:960px; height:90px; margin:auto; background-color:#000;}。logo {position:relative; width:209px; height:54px; top:18px; / * 90/2 - 54/2 = 18 * / left:0; background-color:#ced0d8;}
< header& < div class =logo>< / div>< / header>
I know this has been asked many times before but I simply can't follow the instructions on these other topics. Nothing seems to be working for me. Please check the screenshot to get a better understanding of what I'm trying to accomplish. Also, I added my code to this post. Thanks!
header {
width: 960px;
height: 90px;
margin: auto;
background-color: #000;
}
.logo {
float: left;
width: 209px;
height: 54px;
background-color: #ced0d8;
}
<header>
<div class="logo"></div>
</header>
Method 1
Using position:relative;
and top:50
and transform: translateY(-50%)
you can get it centered, this is so good if you don't know the height of the element, like this:
Support : IE9+ and all other browsers, caniuse.com.
header {
width: 960px;
height: 90px;
margin: auto;
background-color: #000;
}
.logo {
position:relative;
width: 209px;
height: 54px;
top:50%;
left:0;
transform: translateY(-50%);
background-color: #ced0d8;
}
<header>
<div class="logo"></div>
</header>
Method 2: using .calc()
css function ,if you know the height of the element, like this:
Support : IE9+ and all other browsers, caniuse.com
header {
width: 960px;
height: 90px;
margin: auto;
background-color: #000;
}
.logo {
position:relative;
width: 209px;
height: 54px;
top:calc(50% - 27px); /* 50% parent height - 27px is half of 54px the height of .logo */
left:0;
background-color: #ced0d8;
}
<header>
<div class="logo"></div>
</header>
Method 3: if you know both elements height, you can manually subtract half the height of the .logo
from half of the height of the parent div, so 90/2 - 54/2 = 18, like this:
Support: All browsers, caniuse.com.
header {
width: 960px;
height: 90px;
margin: auto;
background-color: #000;
}
.logo {
position:relative;
width: 209px;
height: 54px;
top:18px; /* 90/2 - 54/2 = 18 */
left:0;
background-color: #ced0d8;
}
<header>
<div class="logo"></div>
</header>
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