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Simple loading of random color squares using javascript,

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Author: User
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Simple loading of random color squares using javascript,

Load small blocks with fragments to implement simple random color blocks and directly add the Code:
:

Code:

<!DOCTYPE html>

Css code:


* {-Webkit-box-sizing: border-box;-moz-box-sizing: border-box;} html {font-size: 10px;-webkit-tap-highlight-color: transparent;} body {margin: 0; padding: 0; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 14px; line-height: 1.42857143; color: #333; background-color: rgba (211,232,132, 0.8 );}. container {overflow: visible ;}. main {position: relative; width: 90%; height: 200px; margin: auto ;}. colorful {overflow: visible; width: 100%; height: 100% ;}. colorful> a {float: left; display: block; width: 50px; height: 50px; zoom: 2 ;}. colorful> a: hover {-webkit-animation: infinite 2 s release-in-out start-roll;-moz-animation: infinite 2 s release-in-out start-roll; animation: infinite 2 s release-in-out start-roll;} @-webkit-keyframes start-roll {0% {-webkit-transform: rotate (0deg ); /* chrome */-moz-transform: rotate (0deg);/* Firefox */-ms-transform: rotate (0deg);/* IE */transform: rotate (0deg);-webkit-transition: opacity. 3 s linear; transition: opacity. 3 s linear; opacity :. 5; filter: alpha (opacity = 50); zoom: 1;} 50% {-webkit-transform: rotate (180deg);/* chrome */-moz-transform: rotate (180deg);/* Firefox */-ms-transform: rotate (180deg);/* IE */transform: rotate (180deg);-webkit-transition: opacity 1 s linear; transition: opacity 1 s linear; opacity: 1; filter: alpha (opacity = 100); zoom: 2;} 100% {-webkit-transform: rotate (360deg);/* chrome */-moz-transform: rotate (360deg);/* Firefox */-ms-transform: rotate (360deg ); /* IE */transform: rotate (360deg);-webkit-transition: opacity. 3 s linear; transition: opacity. 3 s linear; opacity :. 5; filter: alpha (opacity = 50); zoom: 1 ;}@- moz-keyframes start-roll {0% {-webkit-transform: rotate (0deg ); /* chrome */-moz-transform: rotate (0deg);/* Firefox */-ms-transform: rotate (0deg);/* IE */transform: rotate (0deg);-webkit-transition: opacity. 3 s linear; transition: opacity. 3 s linear; opacity :. 5; filter: alpha (opacity = 50) ;}50% {-webkit-transform: rotate (180deg);/* chrome */-moz-transform: rotate (180deg ); /* Firefox */-ms-transform: rotate (180deg);/* IE */transform: rotate (180deg);-webkit-transition: opacity 1 s linear; transition: opacity 1 s linear; opacity :. 5; filter: alpha (opacity = 50) ;}100% {-webkit-transform: rotate (360deg);/* chrome */-moz-transform: rotate (360deg ); /* Firefox */-ms-transform: rotate (360deg);/* IE */transform: rotate (360deg);-webkit-transition: opacity. 3 s linear; transition: opacity. 3 s linear; opacity :. 5; filter: alpha (opacity = 50) ;}@ keyframes start-roll {0% {-webkit-transform: rotate (0deg ); /* chrome */-moz-transform: rotate (0deg);/* Firefox */-ms-transform: rotate (0deg);/* IE */transform: rotate (0deg);-webkit-transition: opacity. 3 s linear; transition: opacity. 3 s linear; opacity :. 5; filter: alpha (opacity = 50) ;}50% {-webkit-transform: rotate (180deg);/* chrome */-moz-transform: rotate (180deg ); /* Firefox */-ms-transform: rotate (180deg);/* IE */transform: rotate (180deg);-webkit-transition: opacity 1 s linear; transition: opacity 1 s linear; opacity :. 5; filter: alpha (opacity = 50) ;}100% {-webkit-transform: rotate (360deg);/* chrome */-moz-transform: rotate (360deg ); /* Firefox */-ms-transform: rotate (360deg);/* IE */transform: rotate (360deg);-webkit-transition: opacity. 3 s linear; transition: opacity. 3 s linear; opacity :. 5; filter: alpha (opacity = 50 );}}




Js Code:


(function (window) { var document = window.document; function on(elem, evtnm, eventhd) {  var onevtnm = 'on' + evtnm;  elem[onevtnm] = eventhd; } function grc() {  var val = [], i = 0;  while (++i <= 3) {   val.push(Math.floor(Math.random() * 255));  }  return 'rgb(' + val.join() + ')'; } function fbc() {  var el = document.querySelectorAll('.colorful')[0],   total = Math.floor(el.offsetWidth / 50) * Math.floor(el.offsetHeight / 50),   df = document.createDocumentFragment(),   a;  while (total-- > 0) {   a = document.createElement('a');   a.style.backgroundColor = grc();   df.appendChild(a);  }  el.appendChild(df); } on(window, 'load', function () {  fbc(); });})(window)


I hope this article will help you learn about javascript programming.

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