How to add opacity to a div?
I am trying to add opacit开发者_Python百科y to a div.
Here is my Jquery:
$('.redDiv').fadeIn(0, 0.5);
My HTML:
<div class="redDiv" style="background:red;width:20px;height:20px;"> </div>
<div class="divBlue;" style="background:blue;width:20px;height:20px;"> </div>
<div class="divBlack;" style="background:black;width:20px;height:20px;"> </div>
There are a few different ways to do this:
$('.redDiv').css("opacity", "0.5"); //Immediately sets opacity
$('.redDiv').fadeTo(0, 0.5); //Animates the opacity to 50% over the course of 0 milliseconds. Increase the 0 if you want to animate it.
$('.redDiv').fadeIn(); //Animates the opacity from 0 to 100%
If an element has display:none
fadeTo and fadeIn will both make the element visible before fading it
Something like this ought to help:
$("div").css("opacity", ".7");
The fadeIn
method that you're calling doesn't just apply opacity to an element, but does so from a starting point (transparent) to an endpoint (opaque), essentially animating the element with the transition.
Use fadeTo method
$('.redDiv').fadeTo(0, 0.5);
try this-
$('.redDiv').css("opacity", "0.5");
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