week-13.md

topic	desc	clr	video_tutorials	group_activities	tasks
Progressive enhancement & accessibility	Introduction to making JavaScript optional and not ruining accessibility by adding JavaScript.	2, 3, 5, 6, 7	title url highlight Progressive enhancement progressive-enhancement true title url Accessibility accessibility title url highlight Accessibility checklist accessibility-checklist true title url highlight Accessibility testing checklist accessibility-testing-checklist true title url JavaScript, jQuery & accessibility javascript-jquery-accessibility title url Advanced performance checklist advanced-performance-checklist	title url type no-solution Index card Q&A /courses/shared/index-card-qa/ pencil true	title url type Performance Perfector https://activities.learntheweb.courses/performance-perfector/ activity type blank title url submit pair button type progressinator_id Accessibility testing /courses/shared/accessibility-testing/ Submit nothing. true activity basic portfolio-interim-a11y-testing title url graded-as due due_week due_time submit Final portfolio website https://github.com/ltw-webdev-5/final-portfolio-website final-portfolio Midnight, last day of class 15 23:59 online