.sudokuCell{
  border-width: 1px;
  border-color: #000;
  border-style: solid;
  margin: 0;
  padding: 0;
  width: 1.5em;
  height: 1.5em;
  text-align: center;
  font-size: 2em;
  background-color: #FFF;
}

.boldRightBorder{
  border-right-width: 3px;
}
.boldLeftBorder{
  border-left-width: 3px;
}
.boldBottomBorder{
  border-bottom-width: 3px;
}
.boldTopBorder{
  border-top-width: 3px;
}
#sudokuTable{
  border-collapse: collapse;
}

#generate, #difficulty, #value{
  display: inline-block;
}

#sudoku, #difficulty{
  margin-bottom: 10px;
  margin-left: 10px
}