Overlap of rectangle - html

Question

Below is the image I am trying for; I managed to get a rectangle using CSS, but I am trying for a rectangle above another one .
#dragtarget2 {
float: left;
clear: left;
width: 176px;
height: 76px;
background: #968282;
border-radius: 13px;
}
<div ondragstart="dragStart(event)" draggable="true" id="dragtarget2">
<p>meter</p>
</div>

Answer 1

Make your rectangles position: absolute and the container as position: relative.
This is the code you're looking for.
.container{
position: relative;
}
.first , .second, .third {
position: absolute;
top: 0;
left: 0;
width: 100px;
height: 40px;
background-color: gray;
border-radius: 4px;
border: 2px solid red;
}
.second{
top: 4px;
left: 4px;
}
.third{
top: 8px;
left: 8px;
}
<div class="container">
<div class="first"></div>
<div class="second"></div>
<div class="third"></div>
</div>

Answer 2

Use position: absolute/position: relative to move element from it's origin position. Use z-index to move element above/below other elements (higher z-index - higher element is positioned).
.border {
border: 2px solid red;
background-color: #aaa;
width: 200px;
height: 50px;
line-height: 50px;
position: absolute;
left: 0;
top: 0;
z-index: 5;
}
.border:nth-child(2) {
left: 5px;
top: 5px;
z-index: 6;
}
.border:nth-child(3) {
left: 10px;
top: 10px;
z-index: 7;
}
.wrapper {
margin: 10px;
/* NOTE: this does not effect absolute elements */
padding: 10px;
/* NOTE: this will be origin of absolute elements coordinates */
position: relative;
}
<div class="wrapper">
<div class="border">1</div>
<div class="border">2</div>
<div class="border origin">SmartMeter</div>
</div>
With less HTML:
.wrapper {
position: relative;
margin: 10px;
}
.border {
position: relative;
}
.border span,
.border:before,
.border:after {
content: '';
position: absolute;
left: 0;
top: 0;
border: 2px solid red;
background: #aaa;
display: inline-block;
width: 200px;
height: 50px;
line-height: 50px;
}
.border:after {
left: 5px;
top: 5px;
z-index: 6;
}
.border span {
left: 10px;
top: 10px;
z-index: 7;
}
<div class="wrapper">
<div class="border"><span>SmartMeter</span>
</div>
</div>

Answer 3

I have added two outer divs so that the code is as follows.
#dragtarget2 {
float: left;
clear: left;
width: 176px;
height: 76px;
background: #968282;
border-radius: 13px;
border: 2px solid;
padding: 2px;
}
.dragtarget0 {
float: left;
clear: left;
width: 176px;
height: 76px;
border: 2px solid;
border-radius: 13px;
padding: 2px;
margin: 2px;
}
.dragtarget1 {
float: left;
clear: left;
width: 176px;
height: 76px;
border: 2px solid;
border-radius: 13px;
padding: 3px;
}
<div class="dragtarget0">
<div class="dragtarget1">
<div id="dragtarget2">
<p>meter</p>
</div>
</div>
</div>