Show element on hover another using css - html

Question

I'm working on a tiny css action which based on A element hover, will display another element. The code is pretty basic:
<a title="#" class="portfolio-reaction" href="#">
<img src="http://i.imgur.com/OZb7SI8.png" class="attachment-grid-feat" />
<div class="headline-overlay">LOREM IPSUM</div>
</a>
.portfolio-reaction {
width:250px;
height:250px;
display:block;
}
.headline-overlay {
background:none;
height:100%;
width:100%;
display:none;
position:absolute;
top:10%;
z-index:999;
text-align:left;
padding-left:0.5em;
font-weight:bold;
font-size:1.3em;
color:#000;
}
.attachment-grid-feat:hover ~ .headline-overlay {
display:block;
}
and jsfiddle: https://jsfiddle.net/yL231zsk/1/
This solution works in 99%. The missing percent is the effect - while moving mouse arrow through the button, text is blinking. I have no idea why. Secondly - what if I want to extend number of appearing elements from 1 to 3. So to have:
<a title="#" class="portfolio-reaction" href="#">
<img src="http://i.imgur.com/OZb7SI8.png" class="attachment-grid-feat" />
<div class="headline-overlay">
<p class="element-1">abc</p>
<p class="element-2">111</p>
<div class="element-3">X</div>
</div>
</a>
Thank you for any tips and advices.

Answer 1

You wrote the following in your css file :
.attachment-grid-feat:hover ~ .headline-overlay {
display:block;
}
It won't work since .attachment-grid-feat isn't the parent of .headline-overlay. So it won't select the state when the parent is selected because there are no element .healine-overlay inside .attachment-grid-feat. Also no need to add ~ between the two. The right selector is the following :
.portfolio-reaction:hover .headline-overlay {
display: block;
}
This way you are targeting the child div .healine-overlay when parent div .portfolio-reaction (you might want to make the <a> tag a <div> tag) is hovered.
.portfolio-reaction {
width: 250px;
height: 250px;
display: block;
}
.headline-overlay {
background: none;
display: none;
position: absolute;
top: 10%;
z-index: 999;
text-align: left;
padding-left: 0.5em;
font-weight: bold;
font-size: 1.3em;
color: #000;
}
.portfolio-reaction:hover .headline-overlay {
display: block;
}
<div title="#" class="portfolio-reaction" href="#">
<img src="http://i.imgur.com/OZb7SI8.png" class="attachment-grid-feat" />
<div class="headline-overlay">
<div id="element-1">Hello 1</div>
<div id="element-2">Hello 2</div>
<div id="element-3">Hello 3</div>
</div>
</div>
In this code snippet, three elements are contained inside .headline-overlay. On hover, all three elements are displayed.

Answer 2

First, change the last CSS line from this:
.attachment-grid-feat:hover ~ .headline-overlay {
display:block;
}
into this:
.attachment-grid-feat:hover .headline-overlay {
display:block;
}
And will "half" work. You need after to change the width and height of your <div class="headline-overlay"> from a smaller percentage to match your square width and height(leaving it to 100% covers the entire screen, and as a result, the text wont dissapear, no matter where you will move the cursor). Or, If you want your <div> element to match automaticaly the square size, then you leave the width and height unchanged and change only his position:absolute into position:relative and of course, a little adjusting his position from top.
Here is a working fiddle: https://jsfiddle.net/yL231zsk/9/