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Rubidium was discovered in 1861 spectroscopically by Robert Bunsen and Gustav Kirchoff as an impurity associated with samples of the mineral lepidolite (a form of mica). The name rubidium (from the Latin "rubidus" - dark red) was coined for its bright red spectroscopic lines.
Rubidium is far too reactive to be found as the free metal in nature. It is relatively rare, although it is the 16th most abundant element in the earth's crust. The symbol of Rubidium is electronic eye.
By that inspiration, we create this style "Rubidium" by combinding the chartreuse color of Navigation bar and the dark background. With this texture, every tab will be displayed by its own and not related to each other or does not lay in the same navigation bar. The user’s account, alert and messages will be in the same row and are side by side. It helps the user can focus on using site without any inconvenience.
That’s what we want for the last days of year - Clear and Specific