[WORK] put pseudo content
[PANELS] refactor
[RESPONSIVE] tryout
[SVG] simplify a little
[RESPONSIVE] improvment for phones
[SVG] refactor
[CSS] improve debug mode
[CSS] improve debug mode again
[ANIMATION] remove display non property
[PANELS] split styles
[PANELS] add an interaction class
[JS] update selector
[PANELS] add an utility classname
[CLEAN] repo
[PANELS] change open positioning method