update elements and fix some bugs

lib/src/prism/plugins/previewer-easing/prism-previewer-easing.min.js

+!function(){if(("undefined"==typeof self||self.Prism)&&("undefined"==typeof global||global.Prism)){var e={css:!0,less:!0,sass:[{lang:"sass",inside:"inside",before:"punctuation",root:Prism.languages.sass&&Prism.languages.sass["variable-line"]},{lang:"sass",inside:"inside",root:Prism.languages.sass&&Prism.languages.sass["property-line"]}],scss:!0,stylus:[{lang:"stylus",before:"hexcode",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["property-declaration"].inside},{lang:"stylus",before:"hexcode",inside:"rest",root:Prism.languages.stylus&&Prism.languages.stylus["variable-declaration"].inside}]};Prism.hooks.add("before-highlight",function(r){if(r.language&&e[r.language]&&!e[r.language].initialized){var s=e[r.language];"Array"!==Prism.util.type(s)&&(s=[s]),s.forEach(function(s){var i,a,n,t;s===!0?(i="important",a=r.language,s=r.language):(i=s.before||"important",a=s.inside||s.lang,n=s.root||Prism.languages,t=s.skip,s=r.language),!t&&Prism.languages[s]&&(Prism.languages.insertBefore(a,i,{easing:/\bcubic-bezier\((?:-?\d*\.?\d+,\s*){3}-?\d*\.?\d+\)\B|\b(?:linear|ease(?:-in)?(?:-out)?)(?=\s|[;}]|$)/i},n),r.grammar=Prism.languages[s],e[r.language]={initialized:!0})})}}),Prism.plugins.Previewer&&new Prism.plugins.Previewer("easing",function(e){e={linear:"0,0,1,1",ease:".25,.1,.25,1","ease-in":".42,0,1,1","ease-out":"0,0,.58,1","ease-in-out":".42,0,.58,1"}[e]||e;var r=e.match(/-?\d*\.?\d+/g);if(4===r.length){r=r.map(function(e,r){return 100*(r%2?1-e:e)}),this.querySelector("path").setAttribute("d","M0,100 C"+r[0]+","+r[1]+", "+r[2]+","+r[3]+", 100,0");var s=this.querySelectorAll("line");return s[0].setAttribute("x2",r[0]),s[0].setAttribute("y2",r[1]),s[1].setAttribute("x2",r[2]),s[1].setAttribute("y2",r[3]),!0}return!1},"*",function(){this._elt.innerHTML='<svg viewBox="-20 -20 140 140" width="100" height="100"><defs><marker id="prism-previewer-easing-marker" viewBox="0 0 4 4" refX="2" refY="2" markerUnits="strokeWidth"><circle cx="2" cy="2" r="1.5" /></marker></defs><path d="M0,100 C20,50, 40,30, 100,0" /><line x1="0" y1="100" x2="20" y2="50" marker-start="url('+location.href+'#prism-previewer-easing-marker)" marker-end="url('+location.href+'#prism-previewer-easing-marker)" /><line x1="100" y1="0" x2="40" y2="30" marker-start="url('+location.href+'#prism-previewer-easing-marker)" marker-end="url('+location.href+'#prism-previewer-easing-marker)" /></svg>'})}}();