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>> var sizeBox = document.getElementById('sizeBox'), // container for file size info progress = document.getElementById('progress'); // the element we're using for a progress bar.markdown-block p { margin-left:1.5em; } .markdown-block .ui-closed:before { font-family:monospace; content:"+ "; } .markdown-block .ui-open:before { font-family:monospace; content:"- "; }