Force max-width 100% on div and contents - html

Question

I'm trying to display information for a plant right next to it and I want to force the information to stay right of the image of the plant as long as the screen has a specific min width.
Problem is: if the information contains a line that's longer than the normal width of 100% of leftover width-space in the parent div, the information div is shown below the image.
Example with good line length (no div wrap): https://jsfiddle.net/o3sjug9q/
Example with too much line length (div wrapped around): https://jsfiddle.net/seL72mt9/
How do I force the details div to wrap his text rather than wrapping itself to the next line?
<div class="outer">
<div class="slidecontainer row" id="biodivslider" data-id="1">
<div class="sliderbtn nowrap" onclick="bwdpic()"><</div>
<div class="wrap">
<div class="detailimg"><img src="http://www.nachhaltiger-weinbau.net/wp-content/plugins/biodivslider/img/Milchsterne/Dolden-Milchstern_Ornithogalum_umbellatum-Tci_2004.jpg" class="detailimg"></div>
<div class="details">
<p><span class="detailslabel">Name:</span><br>Milchsterne</p>
<p><span class="detailslabel">Lateinischer Name:</span><br>(Ornithogalum spec.), O. umbellatum, O. nutans</p>
<p><span class="detailslabel">Standort:</span><br>mäßig trocken, sandig, Wärmezeiger, mäßig stickstoffreich</p>
</div>
</div>
<div class="sliderbtn nowrap" onclick="fwdpic()">></div>
</div>
</div>
CSS:
div.outer {
width: 833px;
height: 491px;
background: lightblue;
}
div.slidecontainer {
max-height: 300px;
}
div.row {
display: table;
width: 100%;
table-layout: fixed;
border-spacing: 10px;
max-height: 300px;
}
div.row > div {
float: none;
display: table-cell;
height: 100%;
width: 100%;
}
div.row > div.wrap > div {
float: left;
}
#
div.detailimg {
height: 300px;
width: 300px;
}
img.detailimg {
display: block;
max-height: 300px;
max-width: 300px;
}
div.details {
max-width: 100%;
vertical-align: middle;
word-wrap: break-word;
overflow: visible;
}
span.detailslabel {
font-size: smaller;
font-weight: bold;
}
div.details > p {
line-height: 90%;
word-wrap: break-word;
overflow: visible;
}
div.sliderbtn {
font-size: 50px;
font-weight: 900;
min-height: 300px;
height: 100%;
width: 60px !important;
line-height: 300px;
text-decoration: none;
vertical-align: middle;
text-align: center;
cursor: pointer;
}

Answer 1

https://jsfiddle.net/tjepuh1L/
1.) erase overflow: visible; from div.details and from div.details > p
2.) Define the max-width of div.details as calc(100% - 300px)

Answer 2

change
div.details {
max-width: 100%;
vertical-align: middle;
word-wrap: break-word;
overflow: visible;
}
to
div.details {
max-width: 50%;
vertical-align: middle;
word-wrap: break-word;
overflow: visible;
}
if you use different sizes for your images change max-width in the CSS class of your images aswell to 50%