Make div inside parent 100% width of body, not parent div

问题

I want to make my inner div 100% width of the body, not 100% of the parent div. Is this possible?

The layout looks like this:

<body>
   <div> /** Width:900px; **/
      <div> /** This I want 100% of BODY, not of parent div **/

      </div>
   </div>
</body>

回答1:

i hope you are looking like this........... see the DEMO

UPDATED DEMO 2 AS PER YOUR CURRENT REQUIREMENTS

CSS

    .parent {
background:red;
width:900px;
margin:0 auto;
padding:10px;
    -moz-box-sizing:border-box;
    -webkit-box-sizing:border-box;
    box-sizing:border-box;
}

.inner {
background:green;
height:100px;
position:absolute;
  left:0;
  right:0;
}

.child {
  height:100px;
  background:black;
  margin:10px 0;
}

-------------**

Second Answer with without positioning but with a some trick what i used here so please check it the code & demo mentioned below :-

HTML

<body>
   <div class="parent"> /** Width:900px; **/
  <div class="child"></div>
  </div>
  <div class="inner"> /** This I want 100% of BODY, not of parent div  **/</div>
   <div class="parent">
       <div class="child"></div>
       <div class="child"></div>
   </div>
</body>

CSS

.parent {
background:red;
width:900px;
margin:0 auto;
padding:10px;
    -moz-box-sizing:border-box;
    -webkit-box-sizing:border-box;
    box-sizing:border-box;
}

.inner {
background:green;
height:100px;
}

.child {
  height:100px;
  background:black;
  margin:10px 0;
}

DEMO

回答2:

you can use vh an vw units

.parent {
  width: 900px;
  height: 400px;
  background-color: red;
}
.child {
  width: 100vw;
  height: 200px;
  background-color: blue;
}

<html>
  <body>
   <div class="parent"> 
      <div class="child"> 

      </div>
   </div>
</body>
</html>

回答3:

Consider changing your layoiut to something like the following:

http://jsfiddle.net/KpTHz/

Then you can just apply ID tags to DIVs you want to apply specific rules to.

<div class="outer">
 <div class="inner">HEADER</div>
</div>

<div class="outer">
 <div class="inner">CONTENT</div>
</div>

<div class="outer">
 <div class="inner">FOOTER</div>
</div>


.outer {
 width:100%;
 background:#ccc;
}

.inner {
 width:920px;
 background:#999;
 margin:0 auto 20px;
 padding:20px;
}

回答4:

I think what you are asking for isn't possible. Instead you should consider rethinking your layout. I often find myself doing stuff like this:

html:

<div id="top">
    <div class="wrapper"></div>
</div>
<div id="content">
    <div class="wrapper"></div>
</div>
<div id="footer">
    <div class="wrapper"></div>
</div>

css:

#top {
  background: red;
}

#content {
  background: orange;
}

#footer {
  background: yellow;
}

.wrapper {
  width: 860px;
  margin: 0 auto;
  padding: 20px;
  background: rgba(255, 255, 255, 0.2);
}

demo - http://jsfiddle.net/bxGH2/

回答5:

This made the trick. A jQuery script:

$(document).ready(function () {
  var width = $(window).width();
  $('.pane-block-8').attr('style', 'width:' + width + 'px; left:-26.5% !important;');
});

$(window).resize(function () {
  var width = $(window).width();
  $('.pane-block-8').attr('style', 'width:' + width + 'px; left:-26.5% !important;');
});

回答6:

Overriding the min-width ( min-width:100% ) stopped the container from growing to the size of the contents.

Details: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/fieldset informs: "Unlike almost any other element, the WHATWG HTML Rendering spec suggests min-width: min-content as part of the default style for , and many browsers implement such styling (or something that approximates it)."

来源：https://stackoverflow.com/questions/13511249/make-div-inside-parent-100-width-of-body-not-parent-div

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