spin.js UI Component
http://spin.js.org/#v2.3.2 /** * Copyright (c) 2011-2014 Felix Gnass * Licensed under the MIT license * http://spin.js.org/ * * Example: var opts = { lines: 12 // The number of lines to draw , length: 7 // The length of each line , width: 5 // The line thickness , radius: 10 // The radius of the inner circle , scale: 1.0 // Scales overall size of the spinner , corners: 1 // Roundness (0..1) , color: '#000' // #rgb or #rrggbb , opacity: 1/4 // Opacity of the lines , rotate: 0 // Rotation offset , direction: 1 // 1: clockwise, -1: counterclockwise , speed: 1 // Rounds per second , trail: 100 // Afterglow percentage , fps: 20 // Frames per second when using setTimeout() , zIndex: 2e9 // Use a high z-index by default , className: 'spinner' // CSS cl...