blaineh blaineh - 5 months ago 14
CSS Question

Height not 100% on Container Fluid even though html and body are

I have the following layout (I'm using Meteor):

<template name="headerFooter">
<div class="container-fluid fill-height">
{{> header}}

{{> UI.contentBlock}}

{{> footer}}
</div>
</template>

<template name="home">
{{#headerFooter}}
<div class="row body-film">
<div id="newsfeed" class="col-sm-offset-7 col-sm-5 block-film">
{{#each stories}}
<div class="story">...</div>
{{/each}}
</div>
</div>
{{/headerFooter}}
</template>


and this (relevant)
css
backing it up:

html {
height: 100%;
}
body {
min-height: 100%
}
.fill-height {
height: 100%;
}


The
html
and
body
elements are both behaving as expected. They fill their areas at any zoom level or size.

However, the
container-fluid
with the
fill-height
class added isn't doing the job. It's only wrapping it's content, and not filling to the bottom. This is a problem because it is responsible for adding
body-film
and
block-film
to the page, which are just semi-transparent backgrounds to give the whole thing some color unity.

Here are some screenshots, all with the page zoomed out so the content doesn't fill the height:

My page with nothing selected

Now here it is with the
body
element selected. As you can see it fills the parent just fine.

My page with body selected

But the
container-fluid
doesn't.

My page with container selected

With
fill-height
I've tried both
height
and
min-height
, and they look exactly the same.

Your help is appreciated!

Update



I've been trying every possible combination of
min-height
and
height
on these three elements, and nothing works properly.

height
on all three works when the content is too small for the viewport, but when the content is too large for the viewport, the content block overflows out of the
body
entirely, which means the films are too short for it.

min-height
on all three seems to me to be the most logical way to go, but it breaks when the content is too small. In this case, the
body
element doesn't stretch to fill its
html
parent.

What's going on!!!!????? Is this a bug in the new Blaze templating engine Meteor uses?

Update



I've just tried
height: inherit
in my
fill-height
, and it didn't work either. I'm really at the end of my rope. This seems like it should be so simple.

Update



Alright, I've got a slight change to happen. With this
less
:

.fill-height {
min-height: 100%;
height:auto !important;
height: 100%;
}
.body-film {
.fill-height();
}
.block-film {
.fill-height();
}


The container-fluid is now full height, but not the
body-film
and
block-film
which are using the exact same mixin!!

Here is a screenshot, showing the
row.body-film
, which should be full height, since the
container-fluid
above it is (take my word for it, the
container-fluid
is now stretched to fill the body).

The row is broken.

Note, manually adding the
fill-height
to the
html
declaration of the row didn't change anything, it behaves identically as if it were simply receiving that through the
body-film
mixin.

Why is it that some elements don't respond at all to all of these
min-height
demands?

P.S., I'm using Chrome, but it is on a ubuntu machine, so I can't be sure if there are any inconsistencies.

Answer



The following ended up working:

html, body {
height: 100%;
}
.container-fluid {
height: 100%;
overflow-y: hidden; /* don't show content that exceeds my height */
}
.body-film {
height: 100%;
overflow-y: auto; // a value of 'scroll' will force scrollbars, even if they aren't necessary. This is cleaner.
background-color: fadeout(@studio-bar-color, @studio-body-film-trans-delta);
}
.block-film {
min-height: 100%;
overflow-y: hidden; /* don't show content that exceeds my height */
background-color: fadeout(@studio-bar-color, @studio-block-film-trans-delta);
}


The
overflow
attribute was extremely key, and it's something didn't previously know much about. Giving a
scroll
value to the entire body (the thing that needed to be able to move up and down) was the answer, as well as giving the innermost element (
block-film
) the
min-height
to ensure it stretched itself and subsequently all of the parent elements.

Answer

I know you said you've tried every combination, but what about:

html, body {
    height: 100%;
}
.fill-height {
    min-height: 100%;
    height:auto !important; /* cross-browser */
    height: 100%; /* cross-browser */
}

The problem with setting min-height: 100% on the body, is that height: 100% on the child div does not actually have a proper parent height to reference, and will not work.

EDIT:

This logic applies to all child divs. So in your case, the body-film div is a child of container-fluid. Because container-fluid now has a min-height of 100%, and not a defined height (it is set to auto), when you give a height percentage to body-film, it doesn't have a height to reference. It's worth having a read of MDN - CSS height and MDN - CSS min-height.

In other words, if you wish to have a div with a height or min-height of 100%, then all of its parent elements need to have a defined height of 100%, all the way up to the html tag.

What you may need to do is something like this:

html, body {
    height: 100%;
}
.container-fluid {
    height: 100%;
    overflow-y: hidden; /* don't show content that exceeds my height */
}
.body-film {
    min-height: 100%;
    overflow-y: scroll;
}

This may not be the definitive answer as it depends on what you want exactly, but hopefully this sets you on the right track.