Evenly distribute available responsive height over vertically stacked li elements - css

Question

For responsiveness, I'm developing a website with bootstrap (1st time) and php. In the upper part of the page I want to use a row divided into 2 colums (col-sm-3 & 9), the wider one occupying an image carousel, the other one an unsorted list with 2 list elements, one image, one text. Now I want the elements to have the same height, i.e. 50% of the (responsive) height of the carousel image. The carousel image has a 100% width of the column, so when the display gets smaller, so will the height of the carousel. Thus the height of the list elements has to diminish accordingly.
<!-- Carousel Row -->
<div class="row" id="top">
<!-- Sidebar -->
<div class="col-sm-3 sidebar" id="sidebar">
<ul class="nav navbar-nav-custom">
<li class="logo">
<img>
</li>
<li class="text">
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|
</li>
</ul>
</div>
<!-- Carousel -->
<div class="col-sm-9" id="carouselbar">
<div id="carousel" class="carousel slide" data-ride="carousel">
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|
</div><!-- /.carousel -->
</div>
</div>
I tried to find a solution myself but didn't succeed nor could I find a solution after a real extensive internet search. Could anyone help me out giving these list elements a responsive height, preferably CSS only.

Answer 1

EDITED after comments below.
You can get a responsive height by setting the height to 0 and adding padding-bottom as a percentage. You would need to adjust the acutal percentage depending on your aspect ratio.
You could then add the text inside as an absolutely positioned div with height: 100% and width 100%.
Here's a fiddle I had to use media queries to get the height to stay at 50%.
<li class = 'text_holder'>
<div id ='text'>
My text here
</div>
</li>
.text_holder {
height: 0;
padding-bottom: 85%;
background-color: yellow;
}
#text {
position: absolute;
height: 100%;
width: 100%;
top: 0;
left: 0;
right: 0;
bottom: 0;
}
#media (min-width: 992px) {
.logo {
padding-bottom: 83%;
}
.text_holder {
padding-bottom: 83%;
}
}
/* Large devices (large desktops, 1200px and up) */
#media (min-width: 1200px) {
.logo {
padding-bottom: 81%;
}
.text_holder {
padding-bottom: 81%;
}
}
For the image, you would just use the same method as the carousel, give it a percentage based width, and the height will scale accordingly.
Otherwise, you can adjust font-size to be smaller for lower res screens. You would need to adjust the following to suit your actual design.
/* Extra small devices (phones, less than 768px) */
/* No media query since this is the default in Bootstrap */
.text {
font-size: 1.1em;
}
/* Small devices (tablets, 768px and up) */
#media (min-width: 768px) {
.text {
font-size: .8em;
}
}
/* Medium devices (desktops, 992px and up) */
#media (min-width: 992px) {
.text {
font-size: .9em;
}
}
/* Large devices (large desktops, 1200px and up) */
#media (min-width: 1200px) {
.text {
font-size: 1em;
}
}