<!-- note: we use this additional "contents" div so that we can easilyuse the polymer sugar this.$.contents to get the height of all thecontent inside the cell; which is then used in the flowing algorithms -->臉書粉絲專頁: <!-- note: we use this additional "contents" div so that we can easilyuse the polymer sugar this.$.contents to get the height of all thecontent inside the cell; which is then used in the flowing algorithms --> https://www.facebook.com/ClinicalPsychologistRyanYu/