add skeleton and first modifications

vendor/scrollreveal/scrollreveal.min.js

+!function(e,t){"function"==typeof define&&define.amd?define(t):"object"==typeof exports?module.exports=t(require,exports,module):e.ScrollReveal=t()}(this,function(e,t,n){return function(){"use strict";var e,t,n;this.ScrollReveal=function(){function i(n){return"undefined"==typeof this||Object.getPrototypeOf(this)!==i.prototype?new i(n):(e=this,e.tools=new t,e.isSupported()?(e.tools.extend(e.defaults,n||{}),o(e.defaults),e.store={elements:{},containers:[]},e.sequences={},e.history=[],e.uid=0,e.initialized=!1):"undefined"!=typeof console&&null!==console,e)}function o(t){var n=t.container;return n&&"string"==typeof n?t.container=window.document.querySelector(n):(n&&!e.tools.isNode(n)&&(t.container=null),null==n&&(t.container=window.document.documentElement),t.container)}function r(){return++e.uid}function s(t,n){t.config?t.config=e.tools.extendClone(t.config,n):t.config=e.tools.extendClone(e.defaults,n),"top"===t.config.origin||"bottom"===t.config.origin?t.config.axis="Y":t.config.axis="X","top"!==t.config.origin&&"left"!==t.config.origin||(t.config.distance="-"+t.config.distance)}function a(e){var t=window.getComputedStyle(e.domEl);e.styles||(e.styles={transition:{},transform:{},computed:{}},e.styles.inline=e.domEl.getAttribute("style")||"",e.styles.inline+="; visibility: visible; ",e.styles.computed.opacity=t.opacity,t.transition&&"all 0s ease 0s"!=t.transition?e.styles.computed.transition=t.transition+", ":e.styles.computed.transition=""),e.styles.transition.instant=l(e,0),e.styles.transition.delayed=l(e,e.config.delay),e.styles.transform.initial=" -webkit-transform:",e.styles.transform.target=" -webkit-transform:",c(e),e.styles.transform.initial+="transform:",e.styles.transform.target+="transform:",c(e)}function l(e,t){var n=e.config;return"-webkit-transition: "+e.styles.computed.transition+"-webkit-transform "+n.duration/1e3+"s "+n.easing+" "+t/1e3+"s, opacity "+n.duration/1e3+"s "+n.easing+" "+t/1e3+"s; transition: "+e.styles.computed.transition+"transform "+n.duration/1e3+"s "+n.easing+" "+t/1e3+"s, opacity "+n.duration/1e3+"s "+n.easing+" "+t/1e3+"s; "}function c(e){var t=e.config,n=e.styles.transform;parseInt(t.distance)&&(n.initial+=" translate"+t.axis+"("+t.distance+")",n.target+=" translate"+t.axis+"(0)"),t.scale&&(n.initial+=" scale("+t.scale+")",n.target+=" scale(1)"),t.rotate.x&&(n.initial+=" rotateX("+t.rotate.x+"deg)",n.target+=" rotateX(0)"),t.rotate.y&&(n.initial+=" rotateY("+t.rotate.y+"deg)",n.target+=" rotateY(0)"),t.rotate.z&&(n.initial+=" rotateZ("+t.rotate.z+"deg)",n.target+=" rotateZ(0)"),n.initial+="; opacity: "+t.opacity+";",n.target+="; opacity: "+e.styles.computed.opacity+";"}function f(t){var n=t.config.container;n&&-1==e.store.containers.indexOf(n)&&e.store.containers.push(t.config.container),e.store.elements[t.id]=t}function u(t,n,i){var o={selector:t,config:n,interval:i};e.history.push(o)}function d(){if(e.isSupported()){p();for(var t=0;t<e.store.containers.length;t++)e.store.containers[t].addEventListener("scroll",y),e.store.containers[t].addEventListener("resize",y);e.initialized||(window.addEventListener("scroll",y),window.addEventListener("resize",y),e.initialized=!0)}return e}function y(){n(p)}function m(){var t,n,i,o;e.tools.forOwn(e.sequences,function(r){o=e.sequences[r],t=!1;for(var s=0;s<o.elemIds.length;s++)i=o.elemIds[s],n=e.store.elements[i],O(n)&&!t&&(t=!0);o.active=t})}function p(){var t,n;m(),e.tools.forOwn(e.store.elements,function(i){n=e.store.elements[i],t=b(n),v(n)?(t?n.domEl.setAttribute("style",n.styles.inline+n.styles.transform.target+n.styles.transition.delayed):n.domEl.setAttribute("style",n.styles.inline+n.styles.transform.target+n.styles.transition.instant),w("reveal",n,t),n.revealing=!0,n.seen=!0,n.sequence&&g(n,t)):h(n)&&(n.domEl.setAttribute("style",n.styles.inline+n.styles.transform.initial+n.styles.transition.instant),w("reset",n),n.revealing=!1)})}function g(t,n){var i=0,o=0,r=e.sequences[t.sequence.id];r.blocked=!0,n&&"onload"==t.config.useDelay&&(o=t.config.delay),t.sequence.timer&&(i=Math.abs(t.sequence.timer.started-new Date),window.clearTimeout(t.sequence.timer)),t.sequence.timer={started:new Date},t.sequence.timer.clock=window.setTimeout(function(){r.blocked=!1,t.sequence.timer=null,y()},Math.abs(r.interval)+o-i)}function w(e,t,n){var i=0,o=0,r="after";switch(e){case"reveal":o=t.config.duration,n&&(o+=t.config.delay),r+="Reveal";break;case"reset":o=t.config.duration,r+="Reset"}t.timer&&(i=Math.abs(t.timer.started-new Date),window.clearTimeout(t.timer.clock)),t.timer={started:new Date},t.timer.clock=window.setTimeout(function(){t.config[r](t.domEl),t.timer=null},o-i)}function v(t){if(t.sequence){var n=e.sequences[t.sequence.id];return n.active&&!n.blocked&&!t.revealing&&!t.disabled}return O(t)&&!t.revealing&&!t.disabled}function b(t){var n=t.config.useDelay;return"always"===n||"onload"===n&&!e.initialized||"once"===n&&!t.seen}function h(t){if(t.sequence){var n=e.sequences[t.sequence.id];return!n.active&&t.config.reset&&t.revealing&&!t.disabled}return!O(t)&&t.config.reset&&t.revealing&&!t.disabled}function x(e){return{width:e.clientWidth,height:e.clientHeight}}function q(e){if(e&&e!==window.document.documentElement){var t=E(e);return{x:e.scrollLeft+t.left,y:e.scrollTop+t.top}}return{x:window.pageXOffset,y:window.pageYOffset}}function E(e){var t=0,n=0,i=e.offsetHeight,o=e.offsetWidth;do isNaN(e.offsetTop)||(t+=e.offsetTop),isNaN(e.offsetLeft)||(n+=e.offsetLeft);while(e=e.offsetParent);return{top:t,left:n,height:i,width:o}}function O(e){function t(){var t=c+a*s,n=f+l*s,i=u-a*s,y=d-l*s,m=r.y+e.config.viewOffset.top,p=r.x+e.config.viewOffset.left,g=r.y-e.config.viewOffset.bottom+o.height,w=r.x-e.config.viewOffset.right+o.width;return g>t&&i>m&&n>p&&w>y}function n(){return"fixed"===window.getComputedStyle(e.domEl).position}var i=E(e.domEl),o=x(e.config.container),r=q(e.config.container),s=e.config.viewFactor,a=i.height,l=i.width,c=i.top,f=i.left,u=c+a,d=f+l;return t()||n()}return i.prototype.defaults={origin:"bottom",distance:"20px",duration:500,delay:0,rotate:{x:0,y:0,z:0},opacity:0,scale:.9,easing:"cubic-bezier(0.6, 0.2, 0.1, 1)",container:null,mobile:!0,reset:!1,useDelay:"always",viewFactor:.2,viewOffset:{top:0,right:0,bottom:0,left:0},afterReveal:function(e){},afterReset:function(e){}},i.prototype.isSupported=function(){var e=document.documentElement.style;return"WebkitTransition"in e&&"WebkitTransform"in e||"transition"in e&&"transform"in e},i.prototype.reveal=function(t,n,i,l){var c,y,m,p,g,w;if(c=n&&n.container?o(n):e.defaults.container,y=e.tools.isNode(t)?[t]:Array.prototype.slice.call(c.querySelectorAll(t)),!y.length)return e;n&&"number"==typeof n&&(i=n,n={}),i&&"number"==typeof i&&(w=r(),g=e.sequences[w]={id:w,interval:i,elemIds:[],active:!1});for(var v=0;v<y.length;v++)p=y[v].getAttribute("data-sr-id"),p?m=e.store.elements[p]:(m={id:r(),domEl:y[v],seen:!1,revealing:!1},m.domEl.setAttribute("data-sr-id",m.id)),g&&(m.sequence={id:g.id,index:g.elemIds.length},g.elemIds.push(m.id)),s(m,n||{}),a(m),f(m),e.tools.isMobile()&&!m.config.mobile||!e.isSupported()?(m.domEl.setAttribute("style",m.styles.inline),m.disabled=!0):m.revealing||m.domEl.setAttribute("style",m.styles.inline+m.styles.transform.initial);return!l&&e.isSupported()&&(u(t,n),e.initTimeout&&window.clearTimeout(e.initTimeout),e.initTimeout=window.setTimeout(d,0)),e},i.prototype.sync=function(){if(e.history.length&&e.isSupported()){for(var t=0;t<e.history.length;t++){var n=e.history[t];e.reveal(n.selector,n.config,n.interval,!0)}d()}return e},i}(),t=function(){function e(){}return e.prototype.isObject=function(e){return null!==e&&"object"==typeof e&&e.constructor==Object},e.prototype.isNode=function(e){return"object"==typeof Node?e instanceof Node:e&&"object"==typeof e&&"number"==typeof e.nodeType&&"string"==typeof e.nodeName},e.prototype.forOwn=function(e,t){if(!this.isObject(e))throw new TypeError('Expected "object", but received "'+typeof e+'".');for(var n in e)e.hasOwnProperty(n)&&t(n)},e.prototype.extend=function(e,t){return this.forOwn(t,function(n){this.isObject(t[n])?(e[n]&&this.isObject(e[n])||(e[n]={}),this.extend(e[n],t[n])):e[n]=t[n]}.bind(this)),e},e.prototype.extendClone=function(e,t){return this.extend(this.extend({},e),t)},e.prototype.isMobile=function(){return/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent)},e}(),n=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame}.call(this),this.ScrollReveal});
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