css - HTML table with drop down box -

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i have table, need ask user select data given in dropdown list respect current cell of table. after value selected user, when dropdown list loses focus, want set value in same cell normal text data. means dropdownbox should disappear , new value should appear in same cell normal text data. please me regarding this.

with pure css , html not possible (apart extreme hacking can't think of).

the best thing can use javascript. , others have suggesting jquery useful library make web development javascript easier.


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