The writing-mode CSS property is used to signify whether the lines of text are laid out horizontally or vertically and also the direction in which the block progress.

Syntax: writing-mode: horizontal-tb|vertical-rl|vertical-lr;

Property values:

• horizontal-tb:This mode lets the content flow horizontally from left to right, vertically from top to bottom. The next horizontal line is positioned below the previous line. 
• vertical-rl:This mode lets the content flow vertically from top to bottom, horizontally from right to left. The next vertical line is positioned to the left of the previous line.
• vertical-lr:This mode lets the content flow vertically from top to bottom, horizontally from left to right. The next vertical line is positioned to the right of the previous line. 

Supported Browsers: The browsers that supports the writing-mode property are listed below:

• Google Chrome 48.0
• Edge 12.0
• Internet Explorer 9.0
• Firefox 41.0
• Opera 35.0
• Apple Safari 10.1