Hiding the last item in case of overflow via CSS - css

Question

I have a .list of .items, like this one:
<div class="list">
<div class="item">...</div>
<div class="item">...</div>
<div class="item">...</div>
</div>
Both .item and .list have a maximal height, say 100px and 280px.
I'd like to hide the last .item when it overflows, possibly with no JS.
What I mean is that if .list has overflow: hidden, and all .items reach the max height, then the last one is partially cut. I'd like to hide it completely, i.e. either it fits, or it disappears.
I can change both the CSS and the HTML (including, e.g., using <ul><li>... instead of divs)

Answer 1

If your items would've had a fixed height, and not a maximum, you could've used nth-child to predict at which item it will start to overflow.
Sample | Code
.item{
height: 75px;
border: 1px solid blue;
overflow: auto;
}
.item:nth-child(1n+4){ /* 4th element and up */
display: none;
}
.list{
max-height: 280px;
border: 1px solid red;
overflow: hidden;
}
However, since they aren't fixed heights, the only solution for such dynamics is using javascript.
On that note, here's a javascript solution.
Sample | Code
Javascript
var eList = document.getElementById("list"),
eItems = eList.getElementsByTagName("div"),
iMaxHeight = parseInt(getStyle(eList, "max-height")),
iSumHeight = 0;
for(i = 0; i < eItems.length; i++){
var iHeight = parseInt(getStyle(eItems[i], "height"));
//Check if next item will overflow, in which case, we're going to hide it
if((iSumHeight + iHeight) >= iMaxHeight){
eItems[i].style.display = "none";
}else{
iSumHeight += iHeight;
}
}
function getStyle(el,styleProp){
if (el.currentStyle)
var y = el.currentStyle[styleProp];
else if (window.getComputedStyle)
var y = document.defaultView.getComputedStyle(el,null).getPropertyValue(styleProp);
return y;
}
HTML
<div id="list">
<div class="item">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc pulvinar aliquet risus, vitae suscipit tortor cursus ac.</div>
<div class="item">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc pulvinar aliquet risus, vitae suscipit tortor cursus ac. Nam venenatis, nunc sit amet elementum semper, sem purus ultrices diam, quis scelerisque elit nulla sed sapien. Vivamus urna metus, tincidunt ac accumsan et, dignissim at lorem.</div>
<div class="item">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc pulvinar aliquet risus, vitae suscipit tortor cursus ac. Nam venenatis, nunc sit amet elementum semper, sem purus ultrices diam, quis scelerisque elit nulla sed sapien. Vivamus urna metus, tincidunt ac accumsan et, dignissim at lorem.</div>
<div class="item">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc pulvinar aliquet risus, vitae suscipit tortor cursus ac. Nam venenatis, nunc sit amet elementum semper, sem purus ultrices diam, quis scelerisque elit nulla sed sapien. Vivamus urna metus, tincidunt ac accumsan et, dignissim at lorem.</div>
<div class="item">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc pulvinar aliquet risus, vitae suscipit tortor cursus ac. Nam venenatis, nunc sit amet elementum semper, sem purus ultrices diam, quis scelerisque elit nulla sed sapien. Vivamus urna metus, tincidunt ac accumsan et, dignissim at lorem.</div>
<div class="item">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc pulvinar aliquet risus, vitae suscipit tortor cursus ac. Nam venenatis, nunc sit amet elementum semper, sem purus ultrices diam, quis scelerisque elit nulla sed sapien. Vivamus urna metus, tincidunt ac accumsan et, dignissim at lorem.</div>
<div class="item">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc pulvinar aliquet risus, vitae suscipit tortor cursus ac. Nam venenatis, nunc sit amet elementum semper, sem purus ultrices diam, quis scelerisque elit nulla sed sapien. Vivamus urna metus, tincidunt ac accumsan et, dignissim at lorem.</div>
<div class="item">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc pulvinar aliquet risus, vitae suscipit tortor cursus ac.</div>
</div>
CSS
.item{
max-height: 110px;
border: 1px solid blue;
overflow: auto;
}
#list{
max-height: 290px;
border: 1px solid red;
overflow: hidden;
}

Answer 2

You need javascript to compute height of items, or if you want to do it just with css and you know that heights of both elements will not change, you can compute how many will fit and hide others using nth-child css selector nth-child