Believemy

HTML and CSS glossary

Browse the terms and definitions most commonly used in HTML and CSS development.
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<!DOCTYPE>

@media print

3D transform

a

<a>

<abbr>

<acronym>

<address>

<animate>

<animateMotion>

<animateTransform>

<area>

<article>

<aside>

<audio>

align-content

align-items

align-self

Angle and time units

animation-fill-mode

aspect-ratio

Attribute selector

auto-fit and auto-fill

b

::before and ::after

<b>

<base>

<bdi>

<blockquote>

<body>

<br>

<button>

backdrop-filter

background shorthand

background-color

background-image

bdo

BEM

border

border-radius

Box model

box-shadow

box-sizing

Breakpoint

c

<canvas>

<caption>

<circle>

<cite>

<clipPath>

<code>

<col>

<colgroup>

calc()

Cascade

Cascade layer

clamp(), min() and max()

Class selector

clip-path

Container query

content

CSS animation

CSS color

CSS combinators

CSS custom property

CSS filter

CSS gradient

CSS Grid

CSS inheritance

CSS reset and normalize

CSS selector

CSS sizing

CSS units

CSS-wide keywords

currentColor

cursor

d

<data>

<datalist>

<dd>

<defs>

<del>

<desc>

<details>

<dfn>

<dialog>

<div>

<dl>

<dt>

display

e

<ellipse>

<em>

<embed>

Easing and timing function

f

<feBlend>

<feColorMatrix>

<feComposite>

<feDisplacementMap>

<feDropShadow>

<feFlood>

<feGaussianBlur>

<feMerge>

<feOffset>

<feTurbulence>

<fieldset>

<figcaption>

<figure>

<filter>

<foreignObject>

<form>

feature query

feMergeNode

flex

flex-direction

flex-wrap

Flexbox

float

font-family

font-size

font-weight

footer

fr unit

g

<g>

gap

Grid vs Flexbox

grid-auto-flow

grid-column and grid-row

grid-template-areas

grid-template-columns

h

:has()

:hover

<h1>

<h2>

<h3>

<h4>

<h5>

<h6>

<head>

<header>

<hgroup>

<hr>

<html>

i

:is() and :where()

!important

<i>

<iframe>

<image>

<img>

<input>

<ins>

ID selector

j

justify-content

k

<kbd>

l

<label>

<legend>

<line>

<linearGradient>

<link>

letter-spacing and word-spacing

li

line-height

list-style

Logical properties

m

<main>

<map>

<mark>

<marker>

<mask>

<math>

<menu>

<meta>

<meter>

margin

mask

Media query

mix-blend-mode

Mobile first

n

:not()

:nth-child()

<nav>

<noscript>

Native CSS nesting

o

<object>

<ol>

<optgroup>

<option>

<output>

object-fit

opacity

order

outline

overflow

p

<p>

<path>

<pattern>

<picture>

<polygon>

<polyline>

<pre>

<progress>

padding

pointer-events

position

position: sticky

prefers-color-scheme

prefers-reduced-motion

Pseudo-class

Pseudo-element

q

<q>

r

<radialGradient>

<rect>

<rp>

<rt>

<ruby>

rem and em

repeat() and minmax()

rgba() and hsla()

s

<s>

<samp>

<script>

<search>

<section>

<select>

<set>

<slot>

<small>

<source>

<span>

<stop>

<strong>

<style>

<sub>

<summary>

<sup>

<svg>

<switch>

<symbol>

scroll-behavior

Specificity

stacking context

subgrid

t

<table>

<tbody>

<td>

<template>

<text>

<textarea>

<textPath>

<tfoot>

<th>

<thead>

<time>

<title>

<tr>

<track>

<tspan>

text-align

text-decoration

text-overflow and ellipsis

text-transform

transform

transform-origin

transition

u

<u>

<ul>

<use>

Universal selector

v

<var>

<video>

<view>

Viewport units

visibility

w

<wbr>

white-space

will-change

z

z-index

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