Overflow with Absolute/Relative Positioning Layout

Position absolute and overflow hidden

Make outer <div> to position: relative and inner <div> to position: absolute. It should work for you.

Why does position absolute make page to overflow?

I think I know where this question comes from. You must be confused by people using (negative) absolute positioning on the LEFT side of the screen when they want an element to be off screen WITHOUT horizontal scrollbars. This is a common technique for sliders, menu's and modals.

The thing is that a negative LEFT allignment does NOT show overflow on the body, while a negative right allignment does. Not very logical... I know.

To illustrate this I created a pen with the absolute element on the left: left: -100px; http://codepen.io/anon/pen/vGRxdJ and a pen with the absolute element on the right: right: -100px; http://codepen.io/anon/pen/jqzBZd.

I hope this takes away your confusion.

As to why this happens: I have always understood that the top left corner of the screen is x:0, y:0: the origin of a coordinate system consisting only of positive values (which is mirrored horizontally in the RTL case). Negative values in this coordinate system are 'off-canvas' and thus need no scrollbar, while 'on-canvas' elements do. In other words: on-canvas elements will enlarge your page and make your view automatically scrollable (unless instructed otherwise), while off-canvas elements will not.

Css Position Relative/Absolute is disturbing the Layout

I'd rather not use position: absolute where it's not needed because it breaks the flow. You need only position relative or negative margin-top to move the element up. See example https://jsfiddle.net/DTcHh/29623/

<header class="container-fluid header">
  <div class="row">
    <h1>HEADER</h1>
  </div>
</header>
<section class="container">
  <div class="row position-relative">
    <div class="col-sm-10 col-sm-offset-1 position-relative-col">
      <div class="height">
      <h2>Some Portfolio items here</h2>
      </div>
    </div>
  </div>
</section>
<section class="container trouble">
  <div class="row">
    <h3>Slider Troubling section</h3>
  </div>
</section>

/* Latest compiled and minified CSS included as External Resource*/

/* Optional theme */
@import url('//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap-theme.min.css');
.header {
  background: lightblue;
  padding:25px;
}
.position-relative {
  position:relative;
}
.position-relative-col {
  background: green;
  position: relative;
  top: -50px;
}
.trouble {
  background: darkblue;
  opacity: 0.8;
  color: white;
}
.height {
  height: 100px;
}

Absolute position and Overflow:hidden

It's completely impossible to do what you want with both overflow: hidden and position: relative on the parent div.. instead you can introduce an extra child div and move overflow: hidden to that.

See: http://jsfiddle.net/thirtydot/TFTnU/

HTML:

<div id="parent">
    <div id="hideOverflow">
        <div style="width:1000px;background:#ccc">sdfsd</div>
    </div>
  <div id="child">overflow "visible"</div>
</div>

CSS:

#parent {
    position:relative;
    background:red;
    width:100px;
    height:100px
}
#child {
    position:absolute;
    background:#f0f;
    width:300px;
    bottom: 0;
    left: 0
}
#hideOverflow {
    overflow: hidden
}

#parent {
  position: relative;
  background: red;
  width: 100px;
  height: 100px
}

#child {
  position: absolute;
  background: #f0f;
  width: 300px;
  bottom: 0;
  left: 0
}

#hideOverflow {
  overflow: hidden
}

<div id="parent">
  <div id="hideOverflow">
    <div style="width:1000px;background:#ccc">sdfsd</div>
  </div>
  <div id="child">overflow "visible"</div>
</div>

Position relative and absolute

When you have an element with position: absolute that element is placed relatively to its closest positioned parent. A positioned element is any element with position different from static, be it relative, absolute or fixed.

In your case you have a .wrapper with position: relative and h1 inside it with position: absolute, that is why the latter is positioned 60 pixels from the top of its parent.

If you insist of the child element being below the parent, add z-index: -1 to it - http://jsfiddle.net/jt92sedr/4/
This property applies only to positioned elements.

You can check: http://www.barelyfitz.com/screencast/html-training/css/positioning/

Position Relative vs Absolute?

Absolute CSS Positioning

position: absolute;

Absolute positioning is the easiest to understand. You start with the CSS position property:

position: absolute;

This tells the browser that whatever is going to be positioned should be removed from the normal flow of the document and will be placed in an exact location on the page. It won't affect how the elements before it or after it in the HTML are positioned on the Web page however it will be subject to it's parents' positioning unless you override it.

If you want to position an element 10 pixels from the top of the document window, you would use the top offset to position it there with absolute positioning:

position: absolute;
top: 10px;

This element will then always display 10px from the top of the page regardless of what content passes through, under or over the element (visually).

The four positioning properties are:

1. top
2. right
3. bottom
4. left

To use them, you need to think of them as offset properties. In other words, an element positioned right: 2px is not moved right 2px. It's right side is offset from the right side of the window (or its position overriding parent) by 2px. The same is true for the other three.

Relative Positioning

position: relative;

Relative positioning uses the same four positioning properties as absolute positioning. But instead of basing the position of the element upon the browser view port, it starts from where the element would be if it were still in the normal flow.

For example, if you have three paragraphs on your Web page, and the third has a position: relative style placed on it, its position will be offset based on its current location-- not from the original sides of the view port.

Paragraph 1.

Paragraph 2.

Paragraph 3.

In the above example, the third paragraph will be positioned 3em from the left side of the container element, but will still be below the first two paragraphs. It would remain in the normal flow of the document, and just be offset slightly. If you changed it to position: absolute;, anything following it would display on top of it, because it would no longer be in the normal flow of the document.

Notes:

• the default width of an element that is absolutely positioned is the width of the content within it, unlike an element that is relatively positioned where it's default width is 100% of the space it can fill.

• You can have elements that overlap with absolutely positioned elements, whereas you cannot do this with relatively positioned elements (natively i.e without the use of negative margins/positioning)

---

lots pulled from: this resource

Why does absolute position ignore elements with static positions?

For one thing, the premise is incorrect. There are situations where a statically positioned element can provide the containing block of an absolutely positioned element. position, transform, will-change and contain are all properties that will cause an element to establish an absolute positioning containing block

For example:

.outer {
  width:50vw;
  height:50vh;
  background-color:lightblue;
  margin: 25vh 25vw;
  transform:translateX(0);
}
.inner {
  position:absolute;
  width:100px;
  height:50px;
  inset: 0;
  background-color:red;
}

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

---

Related Topics