Is there a CSS only technique to achieve the following scenario:
An element is positioned absolutely at x,y coordinates on the screen. The document includes a vertical scrollbar depending on its content. Can the height of the element be adjusted based on the available visible viewport area?
Example 1:
Example 2:
HTML:
<div id="dialog">
Change my height with no JS :)
</div>
<div id="content">
... content
</div>
JS Fiddle: https://jsfiddle.net/8dj4xz2q/
A great option is to utilize the VH property along with css calc for calculating the correct height.
Feel free to explore the code snippet below.
#content{
font-size:100px;
color:#CCC;
}
#dialog {
position:absolute;
top:100px;
left:100px;
border: solid 1px red;
height:calc(100vh - 130px);
overflow-y:scroll;
width:200px
}<div id="dialog">
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
</div>
<div id="content">
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
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