Penambahan position:absolute akan membuat elemen tersebut terlepas dari aturan penempatan elemen dan dibatasi oleh parent yang memiliki positioning relative. Sulit memahami apa yang saya tulis diatas, kita langsung ke contoh kasus.Silahkan temen-temen buat file baru dan beri nama absolute.html lalu ketikkan kode berikut:
')),o.each(function(){function o(){a.fixedScrollTop=0,a.sidebar.css({"min-height":"1px"}),a.stickySidebar.css({position:"static",width:""})}function e(t){var o=t.height();return t.children().each(function(){o=Math.max(o,i(this).height())}),o}var a={};a.sidebar=i(this),a.options=t||{},a.container=i(a.options.containerSelector),0==a.container.size()&&(a.container=a.sidebar.parent()),a.sidebar.parents().css("-webkit-transform","none"),a.sidebar.css({position:"relative",overflow:"visible","-webkit-box-sizing":"border-box","-moz-box-sizing":"border-box","box-sizing":"border-box"}),a.stickySidebar=a.sidebar.find(".theiaStickySidebar"),0==a.stickySidebar.length&&(a.sidebar.find("script").remove(),a.stickySidebar=i("
").addClass("theiaStickySidebar").append(a.sidebar.children()),a.sidebar.append(a.stickySidebar)),a.marginTop=parseInt(a.sidebar.css("margin-top")),a.marginBottom=parseInt(a.sidebar.css("margin-bottom")),a.paddingTop=parseInt(a.sidebar.css("padding-top")),a.paddingBottom=parseInt(a.sidebar.css("padding-bottom"));var n=a.stickySidebar.offset().top,d=a.stickySidebar.outerHeight();a.stickySidebar.css("padding-top",1),a.stickySidebar.css("padding-bottom",1),n-=a.stickySidebar.offset().top,d=a.stickySidebar.outerHeight()-d-n,0==n?(a.stickySidebar.css("padding-top",0),a.stickySidebarPaddingTop=0):a.stickySidebarPaddingTop=1,0==d?(a.stickySidebar.css("padding-bottom",0),a.stickySidebarPaddingBottom=0):a.stickySidebarPaddingBottom=1,a.previousScrollTop=null,a.fixedScrollTop=0,o(),a.onScroll=function(a){if(a.stickySidebar.is(":visible")){if(i("body").width()a.container.width())return void o();var n=i(document).scrollTop(),d="static";if(n>=a.container.offset().top+(a.paddingTop+a.marginTop-a.options.additionalMarginTop)){var r,s=a.paddingTop+a.marginTop+t.additionalMarginTop,c=a.paddingBottom+a.marginBottom+t.additionalMarginBottom,p=a.container.offset().top,b=a.container.offset().top+e(a.container),g=0+t.additionalMarginTop,l=a.stickySidebar.outerHeight()+s+c0?Math.min(S,g):Math.max(S,r-a.stickySidebar.outerHeight()),S=Math.max(S,h),S=Math.min(S,f-a.stickySidebar.outerHeight());var m=a.container.height()==a.stickySidebar.outerHeight();d=(m||S!=g)&&(m||S!=r-a.stickySidebar.outerHeight())?n+S-a.sidebar.offset().top-a.paddingTop<=t.additionalMarginTop?"static":"absolute":"fixed"}if("fixed"==d)a.stickySidebar.css({position:"fixed",width:a.sidebar.width(),top:S,left:a.sidebar.offset().left+parseInt(a.sidebar.css("padding-left"))});else if("absolute"==d){var y={};"absolute"!=a.stickySidebar.css("position")&&(y.position="absolute",y.top=n+S-a.sidebar.offset().top-a.stickySidebarPaddingTop-a.stickySidebarPaddingBottom),y.width=a.sidebar.width(),y.left="",a.stickySidebar.css(y)}else"static"==d&&o();"static"!=d&&1==a.options.updateSidebarHeight&&a.sidebar.css({"min-height":a.stickySidebar.outerHeight()+a.stickySidebar.offset().top-a.sidebar.offset().top+a.paddingBottom}),a.previousScrollTop=n}},a.onScroll(a),i(document).scroll(function(i){return function(){i.onScroll(i)}}(a)),i(window).resize(function(i){return function(){i.stickySidebar.css({position:"static"}),i.onScroll(i)}}(a))})}var n={containerSelector:"",additionalMarginTop:0,additionalMarginBottom:0,updateSidebarHeight:!0,minWidth:0,sidebarBehavior:"modern"};t=i.extend(n,t),t.additionalMarginTop=parseInt(t.additionalMarginTop)||0,t.additionalMarginBottom=parseInt(t.additionalMarginBottom)||0,o(t,this)}}(jQuery);
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