Baseline Widely available
The padding-block-start
CSS property defines the logical block start padding of an element, which maps to a physical padding depending on the element's writing mode, directionality, and text orientation.
padding-block-start: 20px;
writing-mode: horizontal-tb;
padding-block-start: 20px;
writing-mode: vertical-rl;
padding-block-start: 5em;
writing-mode: horizontal-tb;
padding-block-start: 5em;
writing-mode: vertical-lr;
<section id="default-example">
<div class="transition-all" id="example-element">
<div class="box">
Far out in the uncharted backwaters of the unfashionable end of the
western spiral arm of the Galaxy lies a small unregarded yellow sun.
</div>
</div>
</section>
#example-element {
border: 10px solid #ffc129;
overflow: hidden;
text-align: left;
}
.box {
border: dashed 1px;
unicode-bidi: bidi-override;
}
Syntax
/* <length> values */
padding-block-start: 10px; /* An absolute length */
padding-block-start: 1em; /* A length relative to the text size */
/* <percentage> value */
padding-block-start: 5%; /* A padding relative to the block container's width */
/* Global values */
padding-block-start: inherit;
padding-block-start: initial;
padding-block-start: revert;
padding-block-start: revert-layer;
padding-block-start: unset;
Values
<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) of the containing block. Must be nonnegative.
The padding-block-start
property takes the same values as physical padding properties such as padding-top
. However, it can be equivalent to padding-top
, padding-bottom
, padding-left
, or padding-right
depending on the values set for writing-mode
, direction
, and text-orientation
.
It relates to padding-block-end
, padding-inline-start
, and padding-inline-end
, which define the other padding values of the element.
padding-block-start =Examples Setting block start padding for vertical text HTML
<'padding-top'><padding-top> =
<length-percentage [0,â]><length-percentage> =
<length> |
<percentage>
<div>
<p class="exampleText">Example text</p>
</div>
CSS
div {
background-color: yellow;
width: 120px;
height: 120px;
}
.exampleText {
writing-mode: vertical-lr;
padding-block-start: 20px;
background-color: #c8c800;
}
Result Specifications Browser compatibility See also
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HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4