Vertical line spacing on the web is like line spacing in print or other word processing programs. Lines of text can either appear single spaced with virtually no space vertically between the lines of text, or double spaced where some space appears vertically between the two lines of text. In web terminology, single spacing of lines is called a soft return and double spacing of lines is called a hard return.
To achieve a single spacing vertically between lines of text, press the "Ctrl + Enter" keys to start a new line.
To achieve a double spacing vertically between lines of text, simply press the "Enter" key.
Single spacing of lines of text is the default line spacing for lines of text that are long enough to be naturally wrapped to the next line.
To create a single spacing vertically between lines of text when there is currently a double spacing, remove all space between the lines by pressing the "Back Space" key and then press the "Ctrl + Enter" keys to start a new line.