Place an item at a fixed position in a scrolling div

Question

I have a page full of content and window is scrollable, in which there is scrollable div where my objective is to place an icon at the very bottom

Answer 1

A standardly supported way is to edit the HTML markup and add a wrapper element to both the scrollable and the "fixed" element - which will now have position: absolute; instead:

#wrapper {  /* ADDED */
  position: relative;
  width: 200px;
}

#scrollable {
  height: 100px;
  border: 1px solid;
  overflow: auto;
  position: relative;
}

#wrapperFooter {
  background: red;
  position: absolute; /**/
  bottom:0;
}

<div id="wrapper">
  <div id="scrollable">
    <p style="border: 4px dashed #000; height: 200px;"></p>
  </div>
  <div id="wrapperFooter">ABSOLUTELY! :)</div>
</div>

Answer 2

I think you are looking for sticky position like this

div {
  height: 100px;
  border: 1px solid;
  overflow: auto;
  position: relative;
}

span {
  background: red;
  position: sticky;
  bottom: 0;
}

<div>
  <p>I have something</p>
  <p>I have something shdbfs jsdfjhs d sdfhsjdgf dsb usbsd shdshdhsdbs ds dvhsd sdshd vcsgdvshuc sd chjsdcsshdcbshudcuysdchusd cuyssdc shd cscyusdc gsdcsducsgcs uycsucs sdusdyu</p>
  <p>I have something shdbfs jsdfjhs d sdfhsjdgf dsb usbsd shdshdhsdbs ds dvhsd sdshd vcsgdvshuc sd chjsdcsshdcbshudcuysdchusd cuyssdc shd cscyusdc gsdcsducsgcs uycsucs sdusdyu</p>
  <span>this need to fixed at the bottom and visible while scrolling the div</span>
</div>

<p>I have something</p>
<p>I have something shdbfs jsdfjhs d sdfhsjdgf dsb usbsd shdshdhsdbs ds dvhsd sdshd vcsgdvshuc sd chjsdcsshdcbshudcuysdchusd cuyssdc shd cscyusdc gsdcsducsgcs uycsucs sdusdyu</p>
<p>I have something shdbfs jsdfjhs d sdfhsjdgf dsb usbsd shdshdhsdbs ds dvhsd sdshd vcsgdvshuc sd chjsdcsshdcbshudcuysdchusd cuyssdc shd cscyusdc gsdcsducsgcs uycsucs sdusdyu</p>
<p>I have something</p>
<p>I have something shdbfs jsdfjhs d sdfhsjdgf dsb usbsd shdshdhsdbs ds dvhsd sdshd vcsgdvshuc sd chjsdcsshdcbshudcuysdchusd cuyssdc shd cscyusdc gsdcsducsgcs uycsucs sdusdyu</p>
<p>I have something shdbfs jsdfjhs d sdfhsjdgf dsb usbsd shdshdhsdbs ds dvhsd sdshd vcsgdvshuc sd chjsdcsshdcbshudcuysdchusd cuyssdc shd cscyusdc gsdcsducsgcs uycsucs sdusdyu</p>

Simply pay attention to browser support as this property is not yet supported everywhere

Here is another trick using fixed position but more a hack than a generic solution.

body {
  transform:translate(0,0); /* Block fixed position from scrolling*/
}
div {
  height: 100px;
  border: 1px solid;
  overflow: auto;
  position: relative;
}

span {
  background: red;
  position: fixed;
  margin-top:-110px; /*this need to be calculated depending on content*/
}

<div>
  <p>I have something</p>
  <p>I have something shdbfs jsdfjhs d sdfhsjdgf dsb usbsd shdshdhsdbs ds dvhsd sdshd vcsgdvshuc sd chjsdcsshdcbshudcuysdchusd cuyssdc shd cscyusdc gsdcsducsgcs uycsucs sdusdyu</p>
  <p>I have something shdbfs jsdfjhs d sdfhsjdgf dsb usbsd shdshdhsdbs ds dvhsd sdshd vcsgdvshuc sd chjsdcsshdcbshudcuysdchusd cuyssdc shd cscyusdc gsdcsducsgcs uycsucs sdusdyu</p>
  <span>this need to fixed at the bottom and visible while scrolling the div</span>
</div>

<p>I have something</p>
<p>I have something shdbfs jsdfjhs d sdfhsjdgf dsb usbsd shdshdhsdbs ds dvhsd sdshd vcsgdvshuc sd chjsdcsshdcbshudcuysdchusd cuyssdc shd cscyusdc gsdcsducsgcs uycsucs sdusdyu</p>
<p>I have something shdbfs jsdfjhs d sdfhsjdgf dsb usbsd shdshdhsdbs ds dvhsd sdshd vcsgdvshuc sd chjsdcsshdcbshudcuysdchusd cuyssdc shd cscyusdc gsdcsducsgcs uycsucs sdusdyu</p>
<p>I have something</p>
<p>I have something shdbfs jsdfjhs d sdfhsjdgf dsb usbsd shdshdhsdbs ds dvhsd sdshd vcsgdvshuc sd chjsdcsshdcbshudcuysdchusd cuyssdc shd cscyusdc gsdcsducsgcs uycsucs sdusdyu</p>
<p>I have something shdbfs jsdfjhs d sdfhsjdgf dsb usbsd shdshdhsdbs ds dvhsd sdshd vcsgdvshuc sd chjsdcsshdcbshudcuysdchusd cuyssdc shd cscyusdc gsdcsducsgcs uycsucs sdusdyu</p>