Robert Lange authored 5 years ago and Dorian Merz committed 5 years ago

* screen >= lg: navigation-overlay fits content
* screen >= lg: navigation-overlay add border and padding, position beneath burger menu, adjust z-index
* remove some obsolets css
* add missing links for databases and blog - "FIXME: about us still missing"
* repair closing icon
* lower font size of lg menu dropdown links
* consolidate language submenu: use stylings of main sub menu
** same font size, padding and border
** same distance to navbar
** use letter spacing of main sub menu
* improve main menu for mobile
** cover background on scrolling completely on tablet / phone
** set new calculation of placement for language and registration links -> closer to main menu
* use arrow (chevron) instead of X for closing icon
* closee main submenu after click on language menu or within search box
* same scrolling behaviour of language and main menu
** both stay in top on home page
** keep visible when scrolling on other pages
* use same width for closing and opening text to prevent moving menubar
* rename close in German
* improve javascript for closing menus by click on each other