CSS text-decoration-thickness Property

❮ Previous Reference Next ❯


.example1 {
  text-decoration-line: underline;
  text-decoration-thickness: auto;

.example2 {
  text-decoration-line: underline;
  text-decoration-thickness: 30%;

.example3 {
  text-decoration-line: underline;
  text-decoration-thickness: solid red 5px;

.example4 {
  text-decoration-line: underline;
  text-decoration-thickness: 5px;

Hello World!


The text-decoration-thickness property sets the stroke thickness of the decoration line that is used on text in an element, such as a line-through, underline, or overline.

Default value:auto
JavaScript syntax:

Standard Syntax

text-decoration-thickness: auto|from-font|length/percentage|initial|inherit|revert|revert-layer|unset;

Browser Support

The numbers in the table specify the first browser version that fully supports the property.


Property Values

The following table describes the values of this property.

Value Description
auto This is default value. .The browser chooses the thickness of the decoration line.
from-font If a font file contains information about a preferred thickness, use that value. If not, behave as auto.
length/percentage Specifies the thickness as a length or %
initial Sets this property to its default value.
inherit If specified, the associated element takes the computed value of its parent element animation-delay property.
revert Reverts the cascaded value of the property from its current value to the value the property
revert-layer Rollback styles to the ones specified in previous cascade layers.
unset Resets a property to its inherited value if the property naturally inherits from its parent, and to its initial value if not.

Default CSS Property Values

selectors {
  text-decoration-thickness: auto;
❮ Previous Reference Next ❯