left
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
La propiedad left
especifica parte de la posición de un elemento (posicionado - es decir, con una posición determinada por código).
Para los elementos con una posición absoluta (aquellos que tienen la propiedad position
: absolute
ó position: fixed
), la propiedad left determina la distancia entre el margen izquierdo del elemento y el borde izquierdo de su bloque contenedor.
Pruébalo
Valor inicial | auto |
---|---|
Applies to | positioned elements |
Heredable | no |
Percentages | refer to the width of the containing block |
Valor calculado | if specified as a length, the corresponding absolute length; if specified as a percentage, the specified value; otherwise, auto |
Animation type | a length, percentage or calc(); |
Sintaxis
left: <length> | <percentage> | auto | inherit ;
Valores
<length>
-
Una longitud, un valor negativo, cero, un valor positivo.
<percentage>
-
Un porcentaje del ancho del bloque contenedor.
Ejemplos
CSS
#wrap {
width: 700px;
margin: 0 auto;
background: #5c5c5c;
}
pre {
white-space: pre;
white-space: pre-wrap;
white-space: pre-line;
word-wrap: break-word;
}
#example_1 {
width: 200px;
height: 200px;
position: absolute;
left: 20px;
top: 20px;
background-color: #d8f5ff;
}
#example_2 {
width: 200px;
height: 200px;
position: relative;
top: 0;
right: 0;
background-color: #c1ffdb;
}
#example_3 {
width: 600px;
height: 400px;
position: relative;
top: 20px;
left: 20px;
background-color: #ffd7c2;
}
#example_4 {
width: 200px;
height: 200px;
position: absolute;
bottom: 10px;
right: 20px;
background-color: #ffc7e4;
}
HTML
<div id="wrap">
<div id="example_1">
<pre>
position: absolute;
left: 20px;
top: 20px;
</pre>
<p>
The only containing element for this div is the main window, so it
positions itself in relation to it.
</p>
</div>
<div id="example_2">
<pre>
position: relative;
top: 0;
right: 0;
</pre>
<p>Relative position in relation to its siblings.</p>
</div>
<div id="example_3">
<pre>
float: right;
position: relative;
top: 20px;
left: 20px;
</pre>
<p>Relative to its sibling div above, but removed from flow of content.</p>
<div id="example_4">
<pre>
position: absolute;
bottom: 10px;
right: 20px;
</pre>
<p>Absolute position inside of a parent with relative position</p>
</div>
</div>
</div>
Especificaciones
Specification |
---|
CSS Positioned Layout Module Level 3 # insets |
Compatibilidad con navegadores
BCD tables only load in the browser