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<!DOCTYPE html> <html> <head> <title>Box width height demo</title> </head> <div id="wrapper" class="parent"> <div id="target" class="box"> <div> margin-left:10%<br> margin-top:10%<br> padding-left:10%<br> padding-top:10% </div> </div> <p>200x400px</p> </div> <div id="wrapper2" class="parent"> <div id="target2" class="box"> <div> margin-left:40px<br> margin-top:20px<br> padding-left:40px<br> padding-top:20px </div> </div> <p>200x400px</p> </div> </html>
body { margin: 50px; font-size: 11px; } .parent{ width: 200px; height: 400px; background: #ccc; text-align: center; } .box{ background: #1abc9c; border: 1px solid #333; } .box div{ width: 100px; height: 100px; background: #3498db; } #wrapper{ float: left; } #target { margin-top: 10%; margin-left: 10%; padding-top: 10%; padding-left: 10%; } #wrapper2{ float: right; width: 200px; height: 400px; background: #ccc; } #target2 { margin-top: 40px; margin-left: 20px; padding-top: 40px; padding-left: 20px; }
/* Write JavaScript here */