an element (out of the document stream, position:absolute), and the width of this element is not fixed, how can this element be centered horizontally? Is there any good solution?
an element (out of the document stream, position:absolute), and the width of this element is not fixed, how can this element be centered horizontally? Is there any good solution?
use elastic layout. Parent element:
display: flex;
justify-content: center;// is centered horizontally
align-items: center;// is vertically centered
or
parent element:
position: relative;
Child element:
left: 50%;
top: 50%;
transform: translate (- 50%);
absolutely locate the child element, find the parent and element, and set the top left of the child element to 50%, transform:translate (- 50%);
width and height is just to make it easier to see the effect. You can take a look at my article centered on the n-middle method of a div .
div {
position: absolute;
width: 50px;
height: 50px;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
background-color: pink;
} 1. Flex layout:
parent element setting
.parent {
display: flex;
justify-content: center;
align-items: center;}
2. Transform:transition (- 50% top: 50%)
position: absolute;
width: 100px;
height: 100px;
top: 50%;
left: 50%;
transform: translate (- 50% mam 50%);
/ / or write as
/ / margin-left:-50px; (to know the width and height of the element in advance)
/ / margin-right:-50px
3. Margin:0 auto (the easiest way to center horizontally, you need to know the element width)
4. Display:inline-block
parent element setting
.parent {
text-align: center;}
child element setting
.child {
display:inline-block;}
this is the horizontal and vertical center of your own arrangement. If compatibility allows, choose the one that best suits you
http://jsbin.com/cogiwid/70/e.
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