Check out this image I made showcasing a board with an elongated shadow cast behind it. The intention is to emulate the look of the board leaning against a wall, resulting in a triangular shadow on either side.
I'm curious if it's achievable to replicate this shadow effect using solely CSS. Furthermore, I'd like to know if this technique is compatible across different web browsers?
Can a similar shadow effect be achieved using CSS only?
Absolutely, by utilizing pseudoelements, box shadows, and 2D transformations – specifically, through rotation. An example demonstrating this is provided below.
Is this method compatible across different browsers?
To some extent. The preferred code may not be fully supported in older versions of IE. To ensure compatibility, certain compromises must be made, which are outlined below:
Here's the breakdown of support:
:before and :after – IE8+ only. For broader compatibility, consider replacing these with less-semantic div elements.
rotation – IE6+ with specific IE rules; details on these rules can be found at the end of the example.
box-shadow – IE9+. To enable these shadows to work in IE6+, you may utilize CSSPie.
Here is a quick demonstration to kick-start your project.
<div id="board">
Insert image here!
</div>
#board {
position: absolute;
left: 50px;
top: 50px;
background: #e5e5e5;
text-align: center;
width: 100px;
height: 100px;
}
#board:before {
z-index: -1;
position: absolute;
content: "";
bottom: 0;
left: 5px;
width: 5px;
height: 50%;
background: rgba(0, 0, 0, 0.7);
-webkit-box-shadow: -5px 0 10px rgba(0,0,0, 0.7);
-moz-box-shadow: -5px 0 10px rgba(0, 0, 0, 0.7);
box-shadow: -5px 0 10px rgba(0, 0, 0, 0.7);
-webkit-transform: rotate(6deg);
-moz-transform: rotate(6deg);
-o-transform: rotate(6deg);
-ms-transform: rotate(6deg);
transform: rotate(6deg);
}
#board:after {
z-index: -1;
position: absolute;
content: "";
bottom: 0;
right: 5px;
width: 5px;
height: 50%;
background: rgba(0, 0, 0, 0.7);
-webkit-box-shadow: 5px 0 10px rgba(0,0,0, 0.7);
-moz-box-shadow: 5px 0 10px rgba(0, 0, 0, 0.7);
box-shadow: 5px 0 10px rgba(0, 0, 0, 0.7);
-webkit-transform: rotate(-6deg);
-moz-transform: rotate(-6deg);
-o-transform: rotate(-6deg);
-ms-transform: rotate(-6deg);
transform: rotate(-6deg);
}
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