how can i overlay the blue div over the yellow div? I tried to add a relative position to the outer div, but i doesnt work.
.c1{
padding:25px;
background: blue;
position: relative;
top: 0;
left: 0;
z-index: 10;
}
.c2{
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 1;
background: yellow;
}
<div class="container">
<div class="c1">
<div class="c2">
Hallo Welt
</div>
</div>
</div>
You can have a child element behind his parent element with z-index. You have to give z-index:-1;
and position:absolute;
to the child div.
Also I'm sharing the link of a article for your reference that describes how you can use the stacking order of elements to allow the z-index to be negative in order to place an element behind it's parent. What No One Told You About Z-Index
.c1{
padding:25px;
background:blue;
position:relative;
top: 0;
left: 0;
}
.c2{
position:absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: yellow;
z-index:-1;
}
<div class="container">
<div class="c1">
<div class="c2">
Hallo Welt
</div>
</div>
</div>