i have many error whit tables first this one

How you can see the photo and the text they are not symmetric but in the code they are symmetric.
i dont get it....
  
  the other issues is that the tables doesnt have borders but here they have it well in all the page they have it but always i put they without border so i dont get it either.The other thing is that when you put the mouse over each tablet this change the color for something more yellow...lol why?
thanks for your help.
