Question

That’s how cell selection looks in MS Excel:

Is it possible to have the similar border in regular HTML <table> so that the border overlaps near cells (if you look closely you’ll see that the border is extended for about 1px each side over near cells)?

Answer 1

Yes, to a certain extent. I’ve only tested in Chrome, but this works: http://jsfiddle.net/q4Lcc/

td {
    width: 120px;
    height: 50px;
  border: 1px solid gray;  
}

td#test_td {
     border: 3px solid black;   
}