Licenciada en Ingeniería Informática en la Universidad de Granada (España).
Experta en el desarrollo de aplicaciones web y móviles.
Apasionada por el Front-end y la Experiencia de Usuario.
2007-2016 Freelance en empresas como 3DVista y Axesor.
2016-Actualidad Senior Software Engineer en Badger Maps.
No es solo texto y enlaces
La web no tiene límites
Selector | Example | Example description | CSS |
---|---|---|---|
.class | .intro | Selects all elements with class="intro" | 1 |
#id | #firstname | Selects the element with id="firstname" | 1 |
* | * | Selects all elements | 2 |
element | p | Selects all <p> elements | 1 |
element,element | div, p | Selects all <div> elements and all <p> elements | 1 |
element element | div p | Selects all <p> elements inside <div> elements | 1 |
element>element | div > p | Selects all <p> elements where the parent is a <div> element | 2 |
element+element | div + p | Selects all <p> elements that are placed immediately after <div> elements | 2 |
element1~element2 | p ~ ul | Selects every <ul> element that are preceded by a <p> element | 3 |
[attribute] | [target] | Selects all elements with a target attribute | 2 |
[attribute=value] | [target=_blank] | Selects all elements with target="_blank" | 2 |
[attribute~=value] | [title~=flower] | Selects all elements with a title attribute containing the word "flower" | 2 |
[attribute|=value] | [lang|=en] | Selects all elements with a lang attribute value starting with "en" | 2 |
[attribute^=value] | a[href^="https"] | Selects every <a> element whose href attribute value begins with "https" | 3 |
[attribute$=value] | a[href$=".pdf"] | Selects every <a> element whose href attribute value ends with ".pdf" | 3 |
[attribute*=value] | a[href*="w3schools"] | Selects every <a> element whose href attribute value contains the substring "w3schools" | 3 |
:active | a:active | Selects the active link | 1 |
::after | p::after | Insert something after the content of each <p> element | 2 |
::before | p::before | Insert something before the content of each <p> element | 2 |
:checked | input:checked | Selects every checked <input> element | 3 |
:disabled | input:disabled | Selects every disabled <input> element | 3 |
:empty | p:empty | Selects every <p> element that has no children (including text nodes) | 3 |
:enabled | input:enabled | Selects every enabled <input> element | 3 |
:first-child | p:first-child | Selects every <p> element that is the first child of its parent | 2 |
::first-letter | p::first-letter | Selects the first letter of every <p> element | 1 |
::first-line | p::first-line | Selects the first line of every <p> element | 1 |
:first-of-type | p:first-of-type | Selects every <p> element that is the first <p> element of its parent | 3 |
:focus | input:focus | Selects the input element which has focus | 2 |
:hover | a:hover | Selects links on mouse over | 1 |
:in-range | input:in-range | Selects input elements with a value within a specified range | 3 |
:invalid | input:invalid | Selects all input elements with an invalid value | 3 |
:lang(language) | p:lang(it) | Selects every <p> element with a lang attribute equal to "it" (Italian) | 2 |
:last-child | p:last-child | Selects every <p> element that is the last child of its parent | 3 |
:last-of-type | p:last-of-type | Selects every <p> element that is the last <p> element of its parent | 3 |
:link | a:link | Selects all unvisited links | 1 |
:not(selector) | :not(p) | Selects every element that is not a <p> element | 3 |
:nth-child(n) | p:nth-child(2) | Selects every <p> element that is the second child of its parent | 3 |
:nth-last-child(n) | p:nth-last-child(2) | Selects every <p> element that is the second child of its parent, counting from the last child | 3 |
:nth-last-of-type(n) | p:nth-last-of-type(2) | Selects every <p> element that is the second <p> element of its parent, counting from the last child | 3 |
:nth-of-type(n) | p:nth-of-type(2) | Selects every <p> element that is the second <p> element of its parent | 3 |
:only-of-type | p:only-of-type | Selects every <p> element that is the only <p> element of its parent | 3 |
:only-child | p:only-child | Selects every <p> element that is the only child of its parent | 3 |
:optional | input:optional | Selects input elements with no "required" attribute | 3 |
:out-of-range | input:out-of-range | Selects input elements with a value outside a specified range | 3 |
:read-only | input:read-only | Selects input elements with the "readonly" attribute specified | 3 |
:read-write | input:read-write | Selects input elements with the "readonly" attribute NOT specified | 3 |
:required | input:required | Selects input elements with the "required" attribute specified | 3 |
:root | :root | Selects the document's root element | 3 |
::selection | ::selection | Selects the portion of an element that is selected by a user | |
:target | #news:target | Selects the current active #news element (clicked on a URL containing that anchor name) | 3 |
:valid | input:valid | Selects all input elements with a valid value | 3 |
:visited | a:visited | Selects all visited links | 1 |
Prioridad | Tipo de origen de CSS | Descripción |
---|---|---|
1 | Importancia | La anotación ‘!important ’ sobreescribe la prioridad anterior |
2 | Inline | Un estilo aplicado a un elemento HTML por medio del atributo 'style' |
3 | Media Type | Una propiedad aplica a todas las media types, a menos que un media type específico CSS esté definido |
4 | Definido por el usuario | La mayoría de los navegadores tienen esta característica de accesibilidad: un estilo CSS definido por el usuario |
5 | Especificidad del selector | Un selector contextual específico (#heading p ) sobreescribe una definicón general (p ) |
6 | Orden de las reglas | La última regla especificada tiene una mayor prioridad |
7 | Herencia | Si una propiedad no está especificada, es heredada del elemento padre |
8 | Definición de propiedad CSS en el documento HTML | Una regla CSS común sobreescribe el valor del navegador |
9 | Por defecto del navegador | La prioridad más baja: estos valores son determinados por las especificaciones iniciales de la W3C |
Usado para visualizar las páginas web por el navegador
var variable; //undefined
variable = "Hola Mundo!";
variable = 0;
variable = false;
variable = null;
var nombre = "Mundo";
var saludarMundo = function() {
saludar(nombre); //Muestra alerta "Hola Mundo"
};
function saludarPersona(nombre) {
saludar(nombre); //Muestra alerta "Hola <nombre>"
}
function saludar(nombre) {
alert("Hola " + nombre + "!");
}
var Contador = function(i) {
i = i || 0;
return function () {
return ++i;
};
}
var contar = Contador();
contar(); // 1
contar = Contador(10);
contar(); // 11
contar(); // 12
var Contador = function(i) {
this.i = i || 0;
}
Contador.prototype = {
constructor: Contador,
sumar: function () {
return ++this.i;
}
};
var contador = Contador();
contador.sumar(); // 1
contador = Contador(10);
contar.sumar(); // 11
contar.sumar(); // 12
<link rel="stylesheet" href="css/ejemplo2.css">
<header>
<h1 style="color:#cc0099;">No es solo texto y enlaces</h1>
<h2 class="blue">La web no tiene límites</h2>
</header>
<figure>
<a href="https://twitter.com/geekandtechgirl" target="_blank">
<img src="img/portada.jpg">
</a>
</figure>
Página flexible con min-width y unidades relativas (%)
Página responsive con max-width y media-queries
<meta name="viewport" content="width=device-width, initial-scale=1.0">
@media only screen and (max-width : 768px) {
Aplicaciones de Escritorio - Electron
Juego - Canvas
Demo - WebGL/Audio - BabylonJS
Juego - Unity exportado a HTML5
Diseño Web
Lenguajes
Frontend
Backend
Desarrollo Móvil
Coméntalas aquí o por Twitter a @ccsakuweb
Selectores | Especificidad |
---|---|
H1 {color: white;} | 1 |
P EM {color: green;} | 2 |
.grape {color: red;} | 1,0 |
P.bright {color: blue;} | 1,1 |
P.bright EM.dark {color: yellow;} | 2,2 |
#id218 {color: brown;} | 1,0,0 |
style=" " | 1,0,0,0 |