html - Can an :after background-image be used to overlap the next element? -


i have image i'd add :after element nav bar. point being :after cover top portion of next section (this part of design).

the :after set position: absolute top: 100% , seems disappear under next element , z-index hasn't helped. when top set less 100%, can see :after element above nav.

the markup:

<nav>contents</nav> <div>contents</div>

the css:

nav {     width: 100%;     position: relative; }  nav:after {     content: '';     width: 100%;     height: 66px;     background-image: url('image.png');     background-repeat: repeat-x;     position: absolute;     left: 0;     top: 100%; }  no css div yet...

thanks in advance!

all need set z-index on content div lower of pseudo-element note content div must have position setting on other static...position:relative sufficient.

alternatively, set z-index of pseudo-element higher of div (which default 1).

nav {    width: 100%;    position: relative;    height: 50px;    background: lightgreen;  }  nav:after {    content: '';    width: 100%;    height: 66px;    background: rgba(0, 0, 255, 0.5);    background-repeat: repeat-x;    position: absolute;    left: 0;    top: 100%;    z-index: 2;  }  div {    height: 260px;    position: relative;    background: rgba(255, 0, 0, 0.5);  }
<nav>nav</nav>  <div>contents</div>


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