HTML


<svg width="0" height="0" display="none">
  <path id="use" d="M50,50 L150,50 150,150 50,150, 50 50" />
  
  <filter id="hvr" width="150" height="150">
	<feOffset result="offOut" in="SourceGraphic" x="0" y="0" dx="0" dy="0"/>
	<feColorMatrix result="matrixOut" in="offOut" type="matrix" values="0.4 0 0 0 0 0 0.9 0 0 0 0 0 0.1 0 0 0 0 0 2 0"/>
	<feGaussianBlur result="blurOut" in="matrixOut" stdDeviation="0"/>
	<feBlend in="SourceGraphic" in2="blurOut" mode="normal"/>	
  </filter>
</svg>

<svg viewBox="1 1 150 150" class="size">
  <use xlink:href="#use"></use>
</svg>


CSS


/* diff. way /hover SVG
* filtering Browser == Firefox
- + trickFix / Chrome
*/
html, body {
  height: 100%;
  margin: 0;
  background: #53002b;
}
svg {
  /*height: 100%;
  width: 100%;*/
  display: block;
}
path,
polyline {
  fill: transparent;
  stroke: #999;
  stroke-width: 1;
  stroke-opacity: 1;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.size {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  height: 150px;
  width: 150px;
}
.size:hover {
  filter: url(#hvr);
}



JS




CodePlay Playground as you play with the keyboard:

Console

The CodePlay Code Box Editors Playground is very simple to use, anyone can directly interact with a minimum of knowledge of HTML experience, live an idea or a project. We believe that only 5% of the developers has the full capacity and knowledge of each key on the keyboard. Therefore we decided to put together a single command from the Key [Esc] == 27.
For every need and every situation the keyboard [Esc] key fixes and puts in place the Original Initial Code Box Editors.
All this without losing the contents of each Box Editors .
!Enjoy your CodePlay.


CodePlay Playground is a project based on WordPress entirely revised to have a clean and dynamic HTML output.

Editor:

- [Esc] To reset the Box Editors and the closure of any open window overlay, including the Output (FULL) Preview.

New! - Double Click to Expand /Open & Close All Box Editors

New! - Ctrl + Up/Down to Show /Hide the Footer Bar. This allows hide footer bar when you want, + ESC to Back.

New! - Preview in Full page is now also possible via dblClick on the Vertical Drag-bar. Each keyboard action can be Reset via the ESC button.


Ex.
- Close this? [Esc], or a Click outside.


Front End User - New /Save Post is Now Open, Register *required.
New Play Now