Referência de CSS
=================

### -

Use esta **referência de CSS** para navegar por um índice alfabético das propriedades padrão do CSS, pseudo-classes, pseudo-elementos, tipos de dados e @-rules.

Esta referência lista não somente as propriedades do CSS1 e CSS2.1, mas também referências para qualquer propriedade, conceito padronizado ou estabilizado do CSS3.

Veja também Extensões CSS Mozilla para propriedades específicas do Gecko prefixadas com `-moz` e Extensões CSS do WebKit para propriedades específicas do WebKit. Veja Visão geral de propriedades CSS prefixadas por distribuidor por Peter Beverloo para todas as propriedades prefixadas.

* `--*`
* `-webkit-line-clamp` (en-US)

### A

* `abs()` (en-US)
* `accent-color` (en-US)
* `acos()` (en-US)
* `:active`
* `additive-symbols (@counter-style)` (en-US)
* `::after (:after)`
* `align-content`
* `align-items`
* `align-self`
* `align-tracks` (en-US)
* `all` (en-US)
* `<an-plus-b>`
* `<angle>` (en-US)
* `<angle-percentage>` (en-US)
* `animation`
* `animation-composition` (en-US)
* `animation-delay`
* `animation-direction` (en-US)
* `animation-duration` (en-US)
* `animation-fill-mode` (en-US)
* `animation-iteration-count` (en-US)
* `animation-name` (en-US)
* `animation-play-state` (en-US)
* `animation-range` (en-US)
* `animation-range-end` (en-US)
* `animation-range-start` (en-US)
* `animation-timeline` (en-US)
* `animation-timing-function` (en-US)
* `@annotation` (en-US)
* `:any-link` (en-US)
* `appearance` (en-US)
* `ascent-override (@font-face)` (en-US)
* `asin()` (en-US)
* `aspect-ratio` (en-US)
* `atan()` (en-US)
* `atan2()` (en-US)
* `attr()`

### B

* `::backdrop`
* `backdrop-filter`
* `backface-visibility`
* `background`
* `background-attachment`
* `background-blend-mode`
* `background-clip`
* `background-color`
* `background-image` (en-US)
* `background-origin`
* `background-position` (en-US)
* `background-position-x` (en-US)
* `background-position-y` (en-US)
* `background-repeat` (en-US)
* `background-size`
* `base-palette (@font-palette-values)` (en-US)
* `<basic-shape>` (en-US)
* `::before (:before)`
* `:blank`
* `bleed (@page)`
* `<blend-mode>`
* `block-size`
* `blur()` (en-US)
* `border` (en-US)
* `border-block` (en-US)
* `border-block-color` (en-US)
* `border-block-end` (en-US)
* `border-block-end-color` (en-US)
* `border-block-end-style` (en-US)
* `border-block-end-width` (en-US)
* `border-block-start` (en-US)
* `border-block-start-color` (en-US)
* `border-block-start-style` (en-US)
* `border-block-start-width` (en-US)
* `border-block-style` (en-US)
* `border-block-width` (en-US)
* `border-bottom` (en-US)
* `border-bottom-color` (en-US)
* `border-bottom-left-radius` (en-US)
* `border-bottom-right-radius` (en-US)
* `border-bottom-style` (en-US)
* `border-bottom-width` (en-US)
* `border-collapse` (en-US)
* `border-color` (en-US)
* `border-end-end-radius` (en-US)
* `border-end-start-radius` (en-US)
* `border-image` (en-US)
* `border-image-outset` (en-US)
* `border-image-repeat` (en-US)
* `border-image-slice` (en-US)
* `border-image-source` (en-US)
* `border-image-width` (en-US)
* `border-inline` (en-US)
* `border-inline-color` (en-US)
* `border-inline-end` (en-US)
* `border-inline-end-color` (en-US)
* `border-inline-end-style` (en-US)
* `border-inline-end-width` (en-US)
* `border-inline-start` (en-US)
* `border-inline-start-color` (en-US)
* `border-inline-start-style` (en-US)
* `border-inline-start-width` (en-US)
* `border-inline-style` (en-US)
* `border-inline-width` (en-US)
* `border-left`
* `border-left-color` (en-US)
* `border-left-style` (en-US)
* `border-left-width` (en-US)
* `border-radius` (en-US)
* `border-right` (en-US)
* `border-right-color` (en-US)
* `border-right-style` (en-US)
* `border-right-width` (en-US)
* `border-spacing` (en-US)
* `border-start-end-radius` (en-US)
* `border-start-start-radius` (en-US)
* `border-style` (en-US)
* `border-top` (en-US)
* `border-top-color` (en-US)
* `border-top-left-radius` (en-US)
* `border-top-right-radius` (en-US)
* `border-top-style` (en-US)
* `border-top-width` (en-US)
* `border-width` (en-US)
* `bottom` (en-US)
* `@bottom-center`
* `box-decoration-break` (en-US)
* `box-shadow`
* `box-sizing`
* `break-after` (en-US)
* `break-before` (en-US)
* `break-inside` (en-US)
* `brightness()` (en-US)

### C

* `calc()`
* `caption-side` (en-US)
* `caret`
* `caret-color` (en-US)
* `caret-shape`
* `@character-variant` (en-US)
* `@charset`
* `:checked`
* `circle()` (en-US)
* `clamp()` (en-US)
* `clear`
* `clip` (en-US)
* `clip-path` (en-US)
* `<color>`
* `color`
* `color-scheme`
* `column-count` (en-US)
* `column-fill` (en-US)
* `column-gap` (en-US)
* `column-rule` (en-US)
* `column-rule-color` (en-US)
* `column-rule-style` (en-US)
* `column-rule-width` (en-US)
* `column-span` (en-US)
* `column-width` (en-US)
* `columns` (en-US)
* `conic-gradient()` (en-US)
* `contain`
* `contain-intrinsic-block-size` (en-US)
* `contain-intrinsic-height` (en-US)
* `contain-intrinsic-inline-size` (en-US)
* `contain-intrinsic-size` (en-US)
* `contain-intrinsic-width` (en-US)
* `container` (en-US)
* `container-name` (en-US)
* `container-type` (en-US)
* `content`
* `content-visibility` (en-US)
* `contrast()` (en-US)
* `cos()` (en-US)
* `<counter>` (en-US)
* `counter-increment` (en-US)
* `counter-reset` (en-US)
* `counter-set` (en-US)
* `@counter-style` (en-US)
* `counters()` (en-US)
* `cross-fade()` (en-US)
* `cubic-bezier()` (en-US)
* `::cue` (en-US)
* `::cue-region` (en-US)
* `:current` (en-US)
* `cursor`
* `<custom-ident>` (en-US)
* `length#cap` (en-US)
* `length#ch` (en-US)
* `length#cm` (en-US)

### D

* `angle#deg` (en-US)
* `<dashed-ident>` (en-US)
* `:default` (en-US)
* `:defined` (en-US)
* `descent-override (@font-face)` (en-US)
* `<dimension>` (en-US)
* `:dir` (en-US)
* `direction` (en-US)
* `:disabled`
* `display`
* `<display-box>`
* `<display-inside>`
* `<display-internal>`
* `<display-legacy>`
* `<display-listitem>`
* `<display-outside>`
* `drop-shadow()` (en-US)
* `resolution#dpcm` (en-US)
* `resolution#dpi` (en-US)
* `resolution#dppx` (en-US)

### E

* `<easing-function>` (en-US)
* `element()`
* `ellipse()` (en-US)
* `:empty`
* `empty-cells` (en-US)
* `:enabled`
* `env()`
* `exp()` (en-US)
* `length#em` (en-US)
* `length#ex` (en-US)

### F

* `fallback (@counter-style)` (en-US)
* `filter` (en-US)
* `<filter-function>` (en-US)
* `:first` (en-US)
* `:first-child`
* `::first-letter (:first-letter)`
* `::first-line (:first-line)`
* `:first-of-type`
* `fit-content()` (en-US)
* `<flex>` (en-US)
* `flex`
* `flex-basis` (en-US)
* `flex-direction`
* `flex-flow`
* `flex-grow` (en-US)
* `flex-shrink` (en-US)
* `flex-wrap`
* `flex_value#fr` (en-US)
* `float`
* `:focus`
* `:focus-visible` (en-US)
* `:focus-within`
* `font` (en-US)
* `font-display (@font-face)` (en-US)
* `@font-face`
* `font-family`
* `font-family (@font-face)` (en-US)
* `font-family (@font-palette-values)` (en-US)
* `font-feature-settings`
* `font-feature-settings (@font-face)` (en-US)
* `@font-feature-values` (en-US)
* `font-kerning`
* `font-language-override` (en-US)
* `font-optical-sizing` (en-US)
* `font-palette` (en-US)
* `@font-palette-values` (en-US)
* `font-size`
* `font-size-adjust` (en-US)
* `font-stretch` (en-US)
* `font-stretch (@font-face)` (en-US)
* `font-style` (en-US)
* `font-style (@font-face)` (en-US)
* `font-synthesis` (en-US)
* `font-synthesis-position` (en-US)
* `font-synthesis-small-caps` (en-US)
* `font-synthesis-style` (en-US)
* `font-synthesis-weight` (en-US)
* `font-variant` (en-US)
* `font-variant-alternates` (en-US)
* `font-variant-caps` (en-US)
* `font-variant-east-asian` (en-US)
* `font-variant-emoji` (en-US)
* `font-variant-ligatures` (en-US)
* `font-variant-numeric` (en-US)
* `font-variant-position` (en-US)
* `font-variation-settings`
* `font-variation-settings (@font-face)` (en-US)
* `font-weight`
* `font-weight (@font-face)` (en-US)
* `forced-color-adjust` (en-US)
* `format()` (en-US)
* `<frequency>` (en-US)
* `<frequency-percentage>` (en-US)
* `:fullscreen` (en-US)
* `:future` (en-US)

### G

* `angle#grad` (en-US)
* `gap`
* `<gradient>` (en-US)
* `::grammar-error` (en-US)
* `grayscale()`
* `grid`
* `grid-area` (en-US)
* `grid-auto-columns` (en-US)
* `grid-auto-flow`
* `grid-auto-rows` (en-US)
* `grid-column` (en-US)
* `grid-column-end` (en-US)
* `grid-column-start` (en-US)
* `grid-row` (en-US)
* `grid-row-end` (en-US)
* `grid-row-start` (en-US)
* `grid-template` (en-US)
* `grid-template-areas` (en-US)
* `grid-template-columns`
* `grid-template-rows`

### H

* `frequency#Hz` (en-US)
* `hanging-punctuation` (en-US)
* `:has` (en-US)
* `height`
* `@historical-forms`
* `:host()` (en-US)
* `:host-context()`
* `:hover`
* `hsl()`
* `hsla()`
* `hue-rotate()` (en-US)
* `hwb()`
* `hyphenate-character` (en-US)
* `hyphenate-limit-chars` (en-US)
* `hyphens`
* `hypot()` (en-US)

### I

* `<ident>` (en-US)
* `<image>`
* `image()`
* `image-orientation` (en-US)
* `image-rendering` (en-US)
* `image-resolution` (en-US)
* `image-set()` (en-US)
* `@import`
* `:in-range` (en-US)
* `:indeterminate` (en-US)
* `inherit` (en-US)
* `inherits (@property)` (en-US)
* `initial`
* `initial-letter` (en-US)
* `initial-letter-align` (en-US)
* `initial-value (@property)` (en-US)
* `inline-size`
* `input-security`
* `inset` (en-US)
* `inset()` (en-US)
* `inset-block` (en-US)
* `inset-block-end` (en-US)
* `inset-block-start` (en-US)
* `inset-inline` (en-US)
* `inset-inline-end` (en-US)
* `inset-inline-start` (en-US)
* `<integer>` (en-US)
* `:invalid`
* `invert()` (en-US)
* `:is` (en-US)
* `isolation`
* `length#ic` (en-US)
* `length#in` (en-US)

### J

* `justify-content` (en-US)
* `justify-items` (en-US)
* `justify-self` (en-US)
* `justify-tracks` (en-US)

### K

* `frequency#kHz` (en-US)
* `@keyframes` (en-US)

### L

* `lab()`
* `:lang` (en-US)
* `:last-child`
* `:last-of-type`
* `@layer`
* `layer()`
* `layer() (@import)`
* `lch()`
* `leader()`
* `:left` (en-US)
* `left` (en-US)
* `@left-bottom`
* `<length>` (en-US)
* `<length-percentage>` (en-US)
* `letter-spacing`
* `light-dark()`
* `line-break`
* `line-clamp`
* `line-gap-override (@font-face)` (en-US)
* `line-height` (en-US)
* `line-height-step` (en-US)
* `<line-style>` (en-US)
* `linear-gradient()` (en-US)
* `:link`
* `list-style` (en-US)
* `list-style-image` (en-US)
* `list-style-position` (en-US)
* `list-style-type` (en-US)
* `local()` (en-US)
* `:local-link` (en-US)
* `log()` (en-US)

### M

* `length#mm` (en-US)
* `margin`
* `margin-block` (en-US)
* `margin-block-end` (en-US)
* `margin-block-start` (en-US)
* `margin-bottom`
* `margin-inline` (en-US)
* `margin-inline-end` (en-US)
* `margin-inline-start` (en-US)
* `margin-left` (en-US)
* `margin-right` (en-US)
* `margin-top`
* `margin-trim` (en-US)
* `::marker` (en-US)
* `marks (@page)`
* `mask`
* `mask-border` (en-US)
* `mask-border-mode` (en-US)
* `mask-border-outset` (en-US)
* `mask-border-repeat` (en-US)
* `mask-border-slice` (en-US)
* `mask-border-source` (en-US)
* `mask-border-width` (en-US)
* `mask-clip` (en-US)
* `mask-composite` (en-US)
* `mask-image` (en-US)
* `mask-mode` (en-US)
* `mask-origin` (en-US)
* `mask-position` (en-US)
* `mask-repeat` (en-US)
* `mask-size` (en-US)
* `mask-type` (en-US)
* `masonry-auto-flow` (en-US)
* `math-depth` (en-US)
* `math-shift` (en-US)
* `math-style` (en-US)
* `matrix()` (en-US)
* `matrix3d()` (en-US)
* `max()` (en-US)
* `max-block-size` (en-US)
* `max-height` (en-US)
* `max-inline-size` (en-US)
* `max-lines`
* `max-width`
* `@media` (en-US)
* `min()` (en-US)
* `min-block-size` (en-US)
* `min-height`
* `min-inline-size` (en-US)
* `min-width` (en-US)
* `minmax()` (en-US)
* `mix-blend-mode`
* `mod()` (en-US)
* `time#ms`

### N

* `@namespace` (en-US)
* `negative (@counter-style)` (en-US)
* `:not`
* `:nth-child`
* `:nth-last-child`
* `:nth-last-of-type` (en-US)
* `:nth-of-type`
* `<number>`

### O

* `object-fit`
* `object-position` (en-US)
* `offset`
* `offset-anchor` (en-US)
* `offset-distance` (en-US)
* `offset-path` (en-US)
* `offset-position` (en-US)
* `offset-rotate` (en-US)
* `:only-child`
* `:only-of-type`
* `opacity`
* `opacity()`
* `:optional`
* `order` (en-US)
* `@ornaments` (en-US)
* `orphans` (en-US)
* `:out-of-range`
* `outline`
* `outline-color` (en-US)
* `outline-offset` (en-US)
* `outline-style` (en-US)
* `outline-width` (en-US)
* `<overflow>`
* `overflow-anchor` (en-US)
* `overflow-block` (en-US)
* `overflow-clip-margin` (en-US)
* `overflow-inline` (en-US)
* `overflow-wrap`
* `overflow-x` (en-US)
* `overflow-y` (en-US)
* `overlay` (en-US)
* `override-colors (@font-palette-values)` (en-US)
* `overscroll-behavior` (en-US)
* `overscroll-behavior-block` (en-US)
* `overscroll-behavior-inline` (en-US)
* `overscroll-behavior-x` (en-US)
* `overscroll-behavior-y` (en-US)

### P

* `Pseudo-classes`
* `Pseudo-elements`
* `length#pc` (en-US)
* `length#pt` (en-US)
* `length#px` (en-US)
* `pad (@counter-style)` (en-US)
* `padding`
* `padding-block` (en-US)
* `padding-block-end` (en-US)
* `padding-block-start` (en-US)
* `padding-bottom` (en-US)
* `padding-inline` (en-US)
* `padding-inline-end` (en-US)
* `padding-inline-start` (en-US)
* `padding-left`
* `padding-right` (en-US)
* `padding-top` (en-US)
* `@page`
* `page` (en-US)
* `page-break-after` (en-US)
* `page-break-before`
* `page-break-inside` (en-US)
* `page-orientation (@page)` (en-US)
* `paint()` (en-US)
* `paint-order` (en-US)
* `::part` (en-US)
* `:past` (en-US)
* `path()` (en-US)
* `:paused` (en-US)
* `<percentage>` (en-US)
* `perspective` (en-US)
* `perspective()`
* `perspective-origin` (en-US)
* `:picture-in-picture` (en-US)
* `place-content` (en-US)
* `place-items` (en-US)
* `place-self` (en-US)
* `::placeholder` (en-US)
* `:placeholder-shown` (en-US)
* `:playing` (en-US)
* `pointer-events`
* `polygon()` (en-US)
* `<position>` (en-US)
* `position`
* `pow()` (en-US)
* `prefix (@counter-style)` (en-US)
* `print-color-adjust` (en-US)
* `@property` (en-US)

### Q

* `length#Q` (en-US)
* `quotes` (en-US)

### R

* `angle#rad` (en-US)
* `length#rem` (en-US)
* `radial-gradient()` (en-US)
* `range (@counter-style)` (en-US)
* `<ratio>` (en-US)
* `ray()` (en-US)
* `:read-only` (en-US)
* `:read-write`
* `rect()` (en-US)
* `rem()` (en-US)
* `repeat()` (en-US)
* `repeating-conic-gradient()` (en-US)
* `repeating-linear-gradient()` (en-US)
* `repeating-radial-gradient()` (en-US)
* `:required`
* `resize` (en-US)
* `<resolution>` (en-US)
* `reversed()`
* `revert` (en-US)
* `rgb()`
* `rgba()`
* `:right` (en-US)
* `right` (en-US)
* `@right-bottom`
* `:root`
* `rotate` (en-US)
* `rotate()`
* `rotate3d()`
* `rotateX()` (en-US)
* `rotateY()` (en-US)
* `rotateZ()` (en-US)
* `round()` (en-US)
* `row-gap` (en-US)
* `ruby-align`
* `ruby-merge`
* `ruby-position` (en-US)

### S

* `saturate()` (en-US)
* `scale` (en-US)
* `scale()`
* `scale3d()` (en-US)
* `scaleX()` (en-US)
* `scaleY()` (en-US)
* `scaleZ()` (en-US)
* `:scope` (en-US)
* `@scope` (en-US)
* `scroll()` (en-US)
* `scroll-behavior`
* `scroll-margin` (en-US)
* `scroll-margin-block` (en-US)
* `scroll-margin-block-end` (en-US)
* `scroll-margin-block-start` (en-US)
* `scroll-margin-bottom` (en-US)
* `scroll-margin-inline` (en-US)
* `scroll-margin-inline-end` (en-US)
* `scroll-margin-inline-start` (en-US)
* `scroll-margin-left` (en-US)
* `scroll-margin-right` (en-US)
* `scroll-margin-top` (en-US)
* `scroll-padding` (en-US)
* `scroll-padding-block` (en-US)
* `scroll-padding-block-end` (en-US)
* `scroll-padding-block-start` (en-US)
* `scroll-padding-bottom` (en-US)
* `scroll-padding-inline` (en-US)
* `scroll-padding-inline-end` (en-US)
* `scroll-padding-inline-start` (en-US)
* `scroll-padding-left` (en-US)
* `scroll-padding-right` (en-US)
* `scroll-padding-top` (en-US)
* `scroll-snap-align` (en-US)
* `scroll-snap-stop` (en-US)
* `scroll-snap-type` (en-US)
* `scroll-timeline` (en-US)
* `scroll-timeline-axis` (en-US)
* `scroll-timeline-name` (en-US)
* `scrollbar-color`
* `scrollbar-gutter` (en-US)
* `scrollbar-width` (en-US)
* `::selection`
* `selector()`
* `sepia()`
* `<shape>` (en-US)
* `shape-image-threshold` (en-US)
* `shape-margin` (en-US)
* `shape-outside` (en-US)
* `sign()` (en-US)
* `sin()` (en-US)
* `size (@page)` (en-US)
* `size-adjust (@font-face)` (en-US)
* `skew()` (en-US)
* `skewX()` (en-US)
* `skewY()` (en-US)
* `::slotted` (en-US)
* `speak-as (@counter-style)` (en-US)
* `::spelling-error` (en-US)
* `sqrt()` (en-US)
* `src (@font-face)` (en-US)
* `@starting-style` (en-US)
* `steps()` (en-US)
* `<string>` (en-US)
* `@styleset` (en-US)
* `@stylistic` (en-US)
* `suffix (@counter-style)` (en-US)
* `@supports` (en-US)
* `supports() (@import)`
* `@swash` (en-US)
* `symbols (@counter-style)` (en-US)
* `symbols()` (en-US)
* `syntax (@property)` (en-US)
* `system (@counter-style)` (en-US)
* `time#s`

### T

* `angle#turn` (en-US)
* `tab-size` (en-US)
* `table-layout` (en-US)
* `tan()` (en-US)
* `:target`
* `target-counter()`
* `target-counters()`
* `::target-text` (en-US)
* `target-text()`
* `:target-within` (en-US)
* `text-align`
* `text-align-last` (en-US)
* `text-combine-upright` (en-US)
* `text-decoration`
* `text-decoration-color` (en-US)
* `text-decoration-line` (en-US)
* `text-decoration-skip` (en-US)
* `text-decoration-skip-ink` (en-US)
* `text-decoration-style`
* `text-decoration-thickness` (en-US)
* `text-emphasis` (en-US)
* `text-emphasis-color` (en-US)
* `text-emphasis-position` (en-US)
* `text-emphasis-style` (en-US)
* `text-indent` (en-US)
* `text-justify` (en-US)
* `text-orientation` (en-US)
* `text-overflow`
* `text-rendering`
* `text-shadow`
* `text-size-adjust` (en-US)
* `text-transform`
* `text-underline-offset` (en-US)
* `text-underline-position` (en-US)
* `text-wrap` (en-US)
* `<time>`
* `<time-percentage>` (en-US)
* `timeline-scope` (en-US)
* `top` (en-US)
* `@top-center`
* `touch-action` (en-US)
* `transform`
* `transform-box` (en-US)
* `<transform-function>` (en-US)
* `transform-origin`
* `transform-style`
* `transition`
* `transition-behavior` (en-US)
* `transition-delay`
* `transition-duration` (en-US)
* `transition-property` (en-US)
* `transition-timing-function`
* `translate`
* `translate()`
* `translate3d()` (en-US)
* `translateX()` (en-US)
* `translateY()` (en-US)
* `translateZ()` (en-US)
* `type()`

### U

* `unicode-bidi` (en-US)
* `unicode-range (@font-face)` (en-US)
* `unset` (en-US)
* `<url>` (en-US)
* `url()` (en-US)
* `:user-invalid` (en-US)
* `user-select` (en-US)
* `:user-valid` (en-US)

### V

* `length#vh` (en-US)
* `length#vmax` (en-US)
* `length#vmin` (en-US)
* `length#vw` (en-US)
* `:valid`
* `var()`
* `vertical-align`
* `view()`
* `view-timeline` (en-US)
* `view-timeline-axis` (en-US)
* `view-timeline-inset` (en-US)
* `view-timeline-name` (en-US)
* `::view-transition` (en-US)
* `::view-transition-group` (en-US)
* `::view-transition-image-pair` (en-US)
* `view-transition-name` (en-US)
* `::view-transition-new` (en-US)
* `::view-transition-old` (en-US)
* `visibility`
* `:visited`

### W

* `:where` (en-US)
* `white-space`
* `white-space-collapse` (en-US)
* `widows` (en-US)
* `width`
* `will-change`
* `word-break`
* `word-spacing` (en-US)
* `word-wrap`
* `writing-mode`

### X

* `resolution#x` (en-US)

### Z

* `z-index` (en-US)

### Others

* `--*`

Seletores
---------

* Seletores básicos
    + Seletores de tipo `elementname`
    + Seletores de classe `.classname`
    + Seletores de ID `#idname`
    + Seletores universais `* ns|* *|*`
    + Seletores de atributo
        - `[attribute]`
        - `[attribute="value"]`
        - `[attribute~="value"]`
        - `[attribute|="value"]`
        - `[attribute^="value"]`
        - `[attribute$="value"]`
        - `[attribute*="value"]`
        - `[ns|attribute]`
* Combinadores
    + Combinadores equivalentes adjacentes `A + B`
    + Combinadores equivalentes gerais `A ~ B`
    + Combinadores filhos `A > B`
    + Combinadores descendentes `A B`
* Pseudo-elementos
* Pseudo-classes
Miscelânea
----------

* `Comments` (en-US)
* Consultas de mídias
* Contadores
* Gradientes
* Transformações
Conceitos
---------

* Sintaxe do CSS
* Regra At
* Comentários
* Especificidade
* Valor inicial
* Herança
* Valor especificado
* Valor computado
* Valor usado
* Valor corrente
* Modelo de caixa