https://ylaps.edu.hk/js/modernizr-custom.js

1/*! modernizr 3.6.0 (Custom Build) | MIT *
2 * https://modernizr.com/download/?-backgroundsize-bgsizecover-csscalc-flexbox-flexboxlegacy-flexboxtweener-objectfit-opacity-setclasses !*/
3!function(e,n,t){function r(e,n){return typeof e===n}function o(){var e,n,t,o,s,i,a;for(var l in C)if(C.hasOwnProperty(l)){if(e=[],n=C[l],n.name&&(e.push(n.name.toLowerCase()),n.options&&n.options.aliases&&n.options.aliases.length))for(t=0;t<n.options.aliases.length;t++)e.push(n.options.aliases[t].toLowerCase());for(o=r(n.fn,"function")?n.fn():n.fn,s=0;s<e.length;s++)i=e[s],a=i.split("."),1===a.length?Modernizr[a[0]]=o:(!Modernizr[a[0]]||Modernizr[a[0]]instanceof Boolean||(Modernizr[a[0]]=new Boolean(Modernizr[a[0]])),Modernizr[a[0]][a[1]]=o),x.push((o?"":"no-")+a.join("-"))}}function s(e){var n=S.className,t=Modernizr._config.classPrefix||"";if(w&&(n=n.baseVal),Modernizr._config.enableJSClass){var r=new RegExp("(^|\\s)"+t+"no-js(\\s|$)");n=n.replace(r,"$1"+t+"js$2")}Modernizr._config.enableClasses&&(n+=" "+t+e.join(" "+t),w?S.className.baseVal=n:S.className=n)}function i(){return"function"!=typeof n.createElement?n.createElement(arguments[0]):w?n.createElementNS.call(n,"http://www.w3.org/2000/svg",arguments[0]):n.createElement.apply(n,arguments)}function a(e){return e.replace(/([a-z])-([a-z])/g,function(e,n,t){return n+t.toUpperCase()}).replace(/^-/,"")}function l(e,n){return!!~(""+e).indexOf(n)}function f(e,n){return function(){return e.apply(n,arguments)}}function u(e,n,t){var o;for(var s in e)if(e[s]in n)return t===!1?e[s]:(o=n[e[s]],r(o,"function")?f(o,t||n):o);return!1}function c(e){return e.replace(/([A-Z])/g,function(e,n){return"-"+n.toLowerCase()}).replace(/^ms-/,"-ms-")}function d(n,t,r){var o;if("getComputedStyle"in e){o=getComputedStyle.call(e,n,t);var s=e.console;if(null!==o)r&&(o=o.getPropertyValue(r));else if(s){var i=s.error?"error":"log";s[i].call(s,"getComputedStyle returning null, its possible modernizr test results are inaccurate")}}else o=!t&&n.currentStyle&&n.currentStyle[r];return o}function p(){var e=n.body;return e||(e=i(w?"svg":"body"),e.fake=!0),e}function m(e,t,r,o){var s,a,l,f,u="modernizr",c=i("div"),d=p();if(parseInt(r,10))for(;r--;)l=i("div"),l.id=o?o[r]:u+(r+1),c.appendChild(l);return s=i("style"),s.type="text/css",s.id="s"+u,(d.fake?d:c).appendChild(s),d.appendChild(c),s.styleSheet?s.styleSheet.cssText=e:s.appendChild(n.createTextNode(e)),c.id=u,d.fake&&(d.style.background="",d.style.overflow="hidden",f=S.style.overflow,S.style.overflow="hidden",S.appendChild(d)),a=t(c,e),d.fake?(d.parentNode.removeChild(d),S.style.overflow=f,S.offsetHeight):c.parentNode.removeChild(c),!!a}function v(n,r){var o=n.length;if("CSS"in e&&"supports"in e.CSS){for(;o--;)if(e.CSS.supports(c(n[o]),r))return!0;return!1}if("CSSSupportsRule"in e){for(var s=[];o--;)s.push("("+c(n[o])+":"+r+")");return s=s.join(" or "),m("@supports ("+s+") { #modernizr { position: absolute; 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