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border-start-start-radius

Baseline Widely available

This feature is well established and works across many devices and browser versions. Its been available across browsers since septiembre de 2021.

Experimental: Esta es una tecnologa experimental
Comprueba la Tabla de compabilidad de navegadores cuidadosamente antes de usarla en produccin.

La propiedad de CSS border-start-start-radius define al radio del borde lgico de un elemento, que se asigna al radio de borde fsico dependiendo del modo de escritura, la direccionalidad y la orientacin del texto del elemento. Esto corresponde a las propiedades writing-mode, direction, y text-orientation.

css
/* <length> values */
/* With one value the corner will be a circle */
border-start-start-radius: 10px;
border-start-start-radius: 1em;

/* With two values the corner will be an ellipse */
border-start-start-radius: 1em 2em;

/* Global values */
border-start-start-radius: inherit;
border-start-start-radius: initial;
border-start-start-radius: unset;

Por ejemplo, en un modo de escritura horizontal-tb, esta propiedad corresponde a la propiedad border-top-left-radius.

In this article

Sintaxis

Valores

<length-percentage>

Indica el tamao del radio del crculo o los ejes semi mayor y semi menor de la elipse. Como longitud absoluta, se puede expresar en cualquier unidad permitida por el tipo de datos CSS <length>. Los porcentajes para el eje horizontal se refieren al ancho de la caja, los porcentajes para el eje vertical se refieren a la altura de la caja. Los valores negativos no son vlidos.

Sintaxis formal

border-start-start-radius = 
  <border-radius>  

<border-radius> = 
  <slash-separated-border-radius-syntax>  |
  <legacy-border-radius-syntax>           

<slash-separated-border-radius-syntax> = 
  <length-percentage [0,]> [ / <length-percentage [0,]> ]?  

<legacy-border-radius-syntax> = 
  <length-percentage [0,]>{1,2}  

<length-percentage> = 
  <length>      |
  <percentage>
Esta sintaxis refleja el estndar ms reciente segn CSS Borders and Box Decorations Module Level 4, CSS Values and Units Module Level 4. Es posible que no todos los navegadores hayan implementado todas las partes. Consulte Compatibilidad del navegador para obtener informacin de soporte.

Ejemplo

Contenido HTML

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

Contenido CSS

css
div {
  background-color: rebeccapurple;
  width: 120px;
  height: 120px;
  border-start-start-radius: 10px;
}

.exampleText {
  writing-mode: vertical-rl;
  padding: 10px;
  background-color: #fff;
  border-start-start-radius: 10px;
}

Especificaciones

Specification
CSS Logical Properties and Values Module Level 1
# border-radius-properties

Compatibilidad con navegadores

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      8. scroll-margin-inline
      9. scroll-margin-inline-end
      10. scroll-margin-inline-start
      11. scroll-margin-left
      12. scroll-margin-right
      13. scroll-margin-top
      14. scroll-marker-group
      15. scroll-padding
      16. scroll-padding-block
      17. scroll-padding-block-end
      18. scroll-padding-block-start
      19. scroll-padding-bottom
      20. scroll-padding-inline
      21. scroll-padding-inline-end
      22. scroll-padding-inline-start
      23. scroll-padding-left
      24. scroll-padding-right
      25. scroll-padding-top
      26. scroll-snap-align
      27. scroll-snap-stop
      28. scroll-snap-type
      29. scroll-target-group
      30. scroll-timeline
      31. scroll-timeline-axis
      32. scroll-timeline-name
    143. scrollbar-*
      1. scrollbar-color
      2. scrollbar-gutter
      3. scrollbar-width
    144. shape-*
      1. shape-image-threshold
      2. shape-margin
      3. shape-outside
      4. shape-rendering
    145. speak-as
    146. stop-color
    147. stop-opacity
    148. stroke-*
      1. stroke-dasharray
      2. stroke-dashoffset
      3. stroke-linecap
      4. stroke-linejoin
      5. stroke-miterlimit
      6. stroke-opacity
      7. stroke-width
    149. stroke
    150. tab-size
    151. table-layout
    152. text-*
      1. text-align
      2. text-align-last
      3. text-anchor
      4. text-autospace
      5. text-box
      6. text-box-edge
      7. text-box-trim
      8. text-combine-upright
      9. text-decoration
      10. text-decoration-color
      11. text-decoration-inset
      12. text-decoration-line
      13. text-decoration-skip
      14. text-decoration-skip-ink
      15. text-decoration-style
      16. text-decoration-thickness
      17. text-emphasis
      18. text-emphasis-color
      19. text-emphasis-position
      20. text-emphasis-style
      21. text-indent
      22. text-justify
      23. text-orientation
      24. text-overflow
      25. text-rendering
      26. text-shadow
      27. text-size-adjust
      28. text-spacing-trim
      29. text-transform
      30. text-underline-offset
      31. text-underline-position
      32. text-wrap
      33. text-wrap-mode
      34. text-wrap-style
    153. timeline-scope
    154. Top
    155. touch-action
    156. transform-*
      1. transform-box
      2. transform-origin
      3. transform-style
    157. transform
    158. transition-*
      1. transition-behavior
      2. transition-delay
      3. transition-duration
      4. transition-property
      5. transition-timing-function
    159. transition
    160. translate
    161. unicode-bidi
    162. -moz-user-modify
    163. user-select
    164. vector-effect
    165. vertical-align
    166. view-*
      1. view-timeline
      2. view-timeline-axis
      3. view-timeline-inset
      4. view-timeline-name
      5. view-transition-class
      6. view-transition-name
      7. view-transition-scope
    167. visibility
    168. white-space
    169. white-space-collapse
    170. widows
    171. width
    172. will-change
    173. word-break
    174. word-spacing
    175. writing-mode
    176. x
    177. y
    178. z-index
    179. zoom
  53. Selectors
    1. & nesting selector
    2. Selectores de atributo
    3. Selectores de clase
    4. Selectores de ID
    5. Keyframe selectors
    6. Namespace separator
    7. Selector list
    8. Selectores de tipo
    9. Selectores universales
  54. Combinators
    1. Selectores de hijo
    2. Column combinator
    3. Los selectores descendientes
    4. Selectores de hermanos adyacentes
    5. Selectores de hermanos generales
  55. Pseudo-classes
    1. :-moz-*
      1. :-moz-broken
      2. :-moz-drag-over
      3. :-moz-first-node
      4. :-moz-handler-blocked
      5. :-moz-handler-crashed
      6. :-moz-handler-disabled
      7. :-moz-last-node
      8. :-moz-loading
      9. :-moz-locale-dir(ltr)
      10. :-moz-locale-dir(rtl)
      11. :-moz-only-whitespace
      12. :-moz-submit-invalid
      13. :-moz-suppressed
      14. :-moz-user-disabled
      15. :-moz-window-inactive
    2. :active-view-transition
    3. :active-view-transition-type()
    4. :active
    5. :any-link
    6. :-webkit-autofill
    7. :blank
    8. :buffering
    9. :checked
    10. :current
    11. :default
    12. :defined
    13. :dir()
    14. :disabled
    15. :empty
    16. :enabled
    17. :first-child
    18. :first-of-type
    19. :first
    20. :focus-visible
    21. :focus-within
    22. :focus
    23. :fullscreen
    24. :future
    25. :has-slotted
    26. :has
    27. :heading
    28. :heading()
    29. :host-context()
    30. :host
    31. :host()
    32. :hover
    33. :in-range
    34. :indeterminate
    35. :interest-source
    36. :interest-target
    37. :invalid
    38. :is()
    39. :lang
    40. :last-child
    41. :last-of-type
    42. :left
    43. :link
    44. :local-link
    45. :modal
    46. :muted
    47. :not()
    48. :nth-*
      1. :nth-child
      2. :nth-last-child
      3. :nth-last-of-type()
      4. :nth-of-type
    49. :only-child
    50. :only-of-type
    51. :open
    52. :optional
    53. :out-of-range
    54. :past
    55. :paused
    56. :picture-in-picture
    57. :placeholder-shown
    58. :playing
    59. :popover-open
    60. :read-only
    61. :read-write
    62. :required
    63. :right
    64. :root
    65. :scope
    66. :seeking
    67. :stalled
    68. :state()
    69. :target-*
      1. :target-after
      2. :target-before
      3. :target-current
    70. :target
    71. :-moz-ui-invalid
    72. :user-valid
    73. :valid
    74. :visited
    75. :volume-locked
    76. :where()
    77. :xr-overlay
  56. Pseudo-elements
    1. ::-moz-*
      1. ::-moz-color-swatch
      2. ::-moz-focus-inner
      3. ::-moz-list-bullet
      4. ::-moz-list-number
      5. ::-moz-meter-bar
      6. ::-moz-progress-bar
      7. ::-moz-range-progress
      8. ::-moz-range-thumb
      9. ::-moz-range-track
    2. ::-webkit-*
      1. ::-webkit-inner-spin-button
      2. ::-webkit-meter-bar
      3. ::-webkit-meter-even-less-good-value
      4. ::-webkit-meter-inner-element
      5. ::-webkit-meter-optimum-value
      6. ::-webkit-meter-suboptimum-value
      7. ::-webkit-progress-bar
      8. ::-webkit-progress-inner-element
      9. ::-webkit-progress-value
      10. ::-webkit-scrollbar
      11. ::-webkit-search-cancel-button
      12. ::-webkit-search-results-button
      13. ::-webkit-slider-runnable-track
      14. ::-webkit-slider-thumb
    3. ::after
    4. ::backdrop
    5. ::before (:before)
    6. ::checkmark
    7. ::column
    8. ::cue
    9. ::details-content
    10. ::file-selector-button
    11. ::first-letter (:first-letter)
    12. ::first-line (:first-line)
    13. ::grammar-error
    14. ::highlight()
    15. ::marker
    16. ::part()
    17. ::picker-icon
    18. ::picker()
    19. ::placeholder
    20. ::scroll-*
      1. ::scroll-button()
      2. ::scroll-marker
      3. ::scroll-marker-group
    21. ::search-text
    22. ::selection
    23. ::slotted()
    24. ::spelling-error
    25. ::target-text
    26. ::view-*
      1. ::view-transition
      2. ::view-transition-group()
      3. ::view-transition-image-pair()
      4. ::view-transition-new()
      5. ::view-transition-old()
  57. At-rules
    1. @charset
    2. @color-profile
    3. @container
    4. @counter-style
      1. additive-symbols
      2. fallback
      3. negative
      4. pad
      5. prefix
      6. range
      7. speak-as
      8. suffix
      9. symbols
      10. system
    5. @custom-media
    6. @document
    7. @font-face
      1. ascent-override
      2. descent-override
      3. font-display
      4. font-family
      5. font-feature-settings
      6. font-stretch
      7. font-style
      8. font-variation-settings
      9. font-weight
      10. font-width
      11. line-gap-override
      12. size-adjust
      13. src
      14. unicode-range
    8. @font-feature-values
      1. font-display
    9. @font-palette-values
      1. base-palette
      2. font-family
      3. override-colors
    10. @function
    11. @import
    12. @keyframes
    13. @layer
    14. @media
      1. -moz-device-pixel-ratio
      2. -webkit-animation
      3. -webkit-device-pixel-ratio
      4. -webkit-transform-2d
      5. -webkit-transform-3d
      6. -webkit-transition
      7. any-hover
      8. any-pointer
      9. aspect-ratio
      10. color
      11. color-gamut
      12. color-index
      13. device-aspect-ratio
      14. device-height
      15. device-posture
      16. device-width
      17. display-mode
      18. dynamic-range
      19. forced-colors
      20. grid
      21. Altura
      22. horizontal-viewport-segments
      23. hover
      24. inverted-colors
      25. monochrome
      26. orientation
      27. overflow-block
      28. overflow-inline
      29. pointer
      30. prefers-color-scheme
      31. prefers-contrast
      32. prefers-reduced-data
      33. prefers-reduced-motion
      34. prefers-reduced-transparency
      35. Resolucin
      36. scan
      37. scripting
      38. shape
      39. update
      40. vertical-viewport-segments
      41. video-dynamic-range
      42. width
    15. @namespace
    16. @page
      1. page-orientation
      2. size
    17. @position-try
    18. @property
      1. inherits
      2. initial-value
      3. syntax
    19. @scope
    20. @starting-style
    21. @supports
    22. @view-transition
  58. Values
    1. !important
    2. fit-content()
    3. inherit
    4. initial
    5. max-content
    6. min-content
    7. revert
    8. revert-layer
    9. revert-rule
    10. unset
  59. Types
    1. <absolute-size>
    2. <alpha-value>
    3. <angle-percentage>
    4. <angle>
    5. <axis>
    6. <baseline-position>
    7. <basic-shape>
    8. <blend-mode>
    9. <box-edge>
    10. <calc-keyword>
    11. <calc-sum>
    12. <color-interpolation-method>
    13. <color>
    14. <content-distribution>
    15. <content-position>
    16. <corner-shape-value>
    17. <custom-ident>
    18. <dashed-function>
    19. <dashed-ident>
    20. <dimension>
    21. <display-box>
    22. <display-inside>
    23. <display-internal>
    24. <display-legacy>
    25. <display-listitem>
    26. <display-outside>
    27. <easing-function>
    28. <filter-function>
    29. <flex>
    30. <frequency-percentage>
    31. <frequency>
    32. <generic-family>
    33. <gradient>
    34. <hex-color>
    35. <hue-interpolation-method>
    36. <hue>
    37. <ident>
    38. <image>
    39. <integer>
    40. <length-percentage>
    41. <length>
    42. <line-style>
    43. <line-width>
    44. <named-color>
    45. <number>
    46. <overflow-position>
    47. <overflow>
    48. <percentage>
    49. <position-area>
    50. <position>
    51. <ratio>
    52. <relative-size>
    53. <resolution>
    54. <rule-list>
    55. <self-position>
    56. <shape>
    57. <string>
    58. <system-color>
    59. <text-edge>
    60. <time-percentage>
    61. <time>
    62. <timeline-range-name>
    63. transform-function
    64. url()
  60. Functions
    1. -moz-image-rect
    2. abs()
    3. acos()
    4. alpha()
    5. anchor-size()
    6. anchor()
    7. asin()
    8. atan()
    9. atan2()
    10. attr
    11. blur()
    12. brightness()
    13. calc-size()
    14. calc
    15. circle()
    16. clamp()
    17. color-mix()
    18. color()
    19. conic-gradient()
    20. contrast-color()
    21. contrast()
    22. cos()
    23. counter()
    24. counters()
    25. cross-fade()
    26. cubic-bezier()
    27. device-cmyk()
    28. drop-shadow()
    29. dynamic-range-limit-mix()
    30. element()
    31. ellipse()
    32. env()
    33. exp()
    34. fit-content()
    35. grayscale()
    36. hsl()
    37. hue-rotate()
    38. hwb()
    39. hypot()
    40. if()
    41. image-set()
    42. image()
    43. inset()
    44. invert()
    45. lab()
    46. lch()
    47. light-dark()
    48. linear-gradient()
    49. linear()
    50. log()
    51. matrix()
    52. matrix3d()
    53. max()
    54. min()
    55. minmax()
    56. mod()
    57. oklab()
    58. oklch()
    59. opacity()
    60. paint()
    61. param()
    62. path()
    63. perspective()
    64. polygon()
    65. pow()
    66. progress()
    67. radial-gradient()
    68. random()
    69. ray()
    70. rect()
    71. rem()
    72. repeat()
    73. repeating-conic-gradient()
    74. repeating-linear-gradient()
    75. repeating-radial-gradient()
    76. rgb()
    77. rotate()
    78. rotate3d()
    79. rotateX()
    80. rotateY()
    81. rotateZ()
    82. round()
    83. saturate()
    84. scale()
    85. scale3d()
    86. scaleX()
    87. scaleY()
    88. scaleZ()
    89. sepia()
    90. shape()
    91. sibling-count()
    92. sibling-index()
    93. sign()
    94. sin()
    95. skew()
    96. skewX()
    97. skewY()
    98. sqrt()
    99. steps()
    100. superellipse()
    101. symbols()
    102. tan()
    103. translate()
    104. translate3d()
    105. translateX()
    106. translateY()
    107. translateZ()
    108. type()
    109. url()
    110. var()
    111. xywh()
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