css - Fading out text at bottom of a section with transparent div, but height stays under section after overlaying div

Question

I'm trying to get a nice fade-out effect at the bottom of a section of text as a 'read more' indicator.

I've been following a bit off this and other tutorials, and my code currently is as follows:

html

<section>
    <p>malesuada fames ac turpis egestas...leo.</p>                                                                  
    <p>malesuada fames ac turpis egestas...leo.</p>
    <div class="fadeout"></div>
</section>
<p>Stuff after</p>

css

.fadeout {
    position: relative; 
    bottom: 4em;
    height: 4em;
    background: -webkit-linear-gradient(
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 1) 100%
    ); 
} 

jsFiddle

The problem is, even when I position the transparent div over the body of text, the 4em's of space still exists between and 'Other Stuff.'

Any ideas?

question from:https://stackoverflow.com/questions/11837606/fading-out-text-at-bottom-of-a-section-with-transparent-div-but-height-stays-un

Answer 1

A relatively position element is not removed from the normal html flow, so if you move it around the initial space reserved for it still remains, however with absolute positioning this is not the case

.fadeout {
    position: absolute; 
    bottom: 0em;
    width:100%;
    height: 4em;
    background: -webkit-linear-gradient(
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 1) 100%
    ); 
    background-image: -moz-linear-gradient(
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 1) 100%
    );
    background-image: -o-linear-gradient(
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 1) 100%
    );
    background-image: linear-gradient(
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 1) 100%
    );
    background-image: -ms-linear-gradient(
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 1) 100%
    );
} 
section {position:relative}     

DEMO