Changes

{|style="width:500px; height:60px; text-align:center;background-color:#704982;" align="center"

{|style="width:500px; height:60px; text-align:center;background-color:#bb0000;" align="center"

|-style="background-color:#F8F0FB;text-align:center;"

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|style="width:100px;"|<math>x+3=7</math>

|style="background-color:#fff;width:100px;"|<math>\sum_{n}n^{-s}=0</math>

<math>x=?</math>

<math>\Re(s)=?</math>

|This artice deals with mathematical concept appropriate for a student of in early high school.  

|style="background-color:#ffdddd;"|This artice deals with mathematical concept appropriate for a student in late univeristy or graduate level.

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