This property is a shorthand for the following CSS properties:

• padding-inline-end
• padding-inline-start

/* <length> values */
padding-inline: 10px 20px;  /* An absolute length */
padding-inline: 1em 2em;   /* relative to the text size */
padding-inline: 10px; /* sets both start and end values */

/* <percentage> values */
padding-inline: 5% 2%; /* relative to the nearest block container's width */

/* Global values */
padding-inline: inherit;
padding-inline: initial;
padding-inline: revert;
padding-inline: unset;

The padding-inline property may be specified with one or two values. If one value is given, it is used as the value for both padding-inline-start and padding-inline-end. If two values are given, the first is used for padding-inline-start and the second for padding-inline-end.

<length>

The size of the padding as a fixed value. Must be nonnegative.

<percentage>

The size of the padding as a percentage, relative to the inline size (width in a horizontal language, defined by writing-mode) of the containing block. Must be nonnegative.

Values for this property correspond to the padding-top and padding-bottom, or padding-right, and padding-left property depending on the values defined for writing-mode, direction, and text-orientation.

padding-inline = 
  <'padding-top'>{1,2}  

HTML

<div>
  <p class="exampleText">Example text</p>
</div>

CSS

div {
  background-color: yellow;
  width: 120px;
  height: 120px;
}

.exampleText {
  writing-mode: vertical-rl;
  padding-inline: 20px 40px;
  background-color: #c8c800;
}

Result

• The mapped physical properties: padding-top, padding-right, padding-bottom, and padding-left
• writing-mode, direction, text-orientation