Bootstrap Gallery Hover - html

Question

I have built a hover effect for my gallery. The gallery is within a Bootstrap Grid.
The hover itself works fine, but in some screen sizes the overlay goes over the gallery images.
Has anybody an idea or a solution or a hint for this problem?
Here an example:
demo
HTML:
<div class="container">
<div class="row">
<div class="col-md-4 col-sm-4">
<a href="http://www.google.com">
<div class="box">
<img class="img-responsive" src="http://placehold.it/300x300" />
<div class="overbox">
<div class="title overtext">Client</div>
<div class="tagline overtext">Tag</div>
</div>
</div>
</a>
</div>
<div class="col-md-4 col-sm-4">
<a href="http://www.google.com">
<div class="box">
<img class="img-responsive" src="http://placehold.it/300x300" />
<div class="overbox">
<div class="title overtext">Client</div>
<div class="tagline overtext">Tag</div>
</div>
</div>
</a>
</div>
<div class="col-md-4 col-sm-4">
<a href="http://www.google.com">
<div class="box">
<img class="img-responsive" src="http://placehold.it/300x300" />
<div class="overbox">
<div class="title overtext">Client</div>
<div class="tagline overtext">Tag</div>
</div>
</div>
</a>
</div>
</div>
</div>
CSS:
.box {
position: relative;
cursor: pointer;
width: 100%;
min-height: 100%;
overflow: hidden;
margin-bottom: 30px;
}
.box .overbox {
position: absolute;
width: 100%;
height: 100%;
top: 0;
left: 0;
z-index: 100;
background-color: rgba(204, 36, 42, 0.75);
color: #fff;
opacity: 0;
-webkit-transition: all 300ms ease-out;
-moz-transition: all 300ms ease-out;
-o-transition: all 300ms ease-out;
-ms-transition: all 300ms ease-out;
transition: all 300ms ease-out;
}
.box:hover .overbox {
opacity: 1;
}
.box .title {
font-size: 22px;
line-height: 131%;
font-weight: 400;
text-align: center;
padding-top: 95px;
}
#media (max-width: 991px) {
.box .title {
padding-top: 43px;
}
}
.box .tagline {
position: absolute;
bottom: 0px;
padding-top: 16px;
padding-bottom: 16px;
width: 100%;
display: flex;
justify-content: center;
font-size: 16px;
font-weight: 400;
font-style: italic;
border-top: 1px solid rgb(255, 255, 255);
}
.box_client {
position: relative;
width: 100%;
height: 100%;
-webkit-filter: grayscale(100%);
-moz-filter: grayscale(100%);
-ms-filter: grayscale(100%);
-o-filter: grayscale(100%);
filter: grayscale(100%);
-webkit-transition: all 300ms ease-out;
-moz-transition: all 300ms ease-out;
-o-transition: all 300ms ease-out;
-ms-transition: all 300ms ease-out;
transition: all 300ms ease-out;
}
.box_client:hover {
background: rgb(235, 234, 233);
-webkit-filter: grayscale(0%);
-moz-filter: grayscale(0%);
-ms-filter: grayscale(0%);
-o-filter: grayscale(0%);
filter: grayscale(0%);
}
.img-responsive {
margin: 0 auto;
}

Answer 1

the overlay goes over the gallery images because you overlay has width:100%; and when the image is smaller than the width of its container the overlay goes over the gallery image because of the width of image
you have 2 options you can make the image width:100% or you can change the style of .box class and remove width:100%; and make its display:inline-block;
.box {
position: relative;
cursor: pointer;
// width: 100%; // remove this
display:inline-block; // add this
min-height: 100%;
overflow: hidden;
margin-bottom: 30px;
}

Answer 2

The Bootstrap column is growing and shrinking while the image has the same fixed size. So .responsive-image is smaller than its parent div. There are a few solutions:
1) Remove the image in the html and have it as a background-image
.box {
background: url(image-url) cover no-repeat;
}
2) Make the image 100% width
.response-image {
width: 100%;
}
3) Or as Ahmed Salama suggests, remove the width: 100% and add display: inline-block;

Answer 3

Your placeholder is smaller then the parent div element, which fits into the whole witdh of it's parent. Thats caused by the class img-responsive, that itself fits the the image to "max-width: 100%". You should use a bigger image or fit it to the size to your parent box, what is not recommended.
In this pen, i changed the placeholdersizes to 767px x 767px: http://codepen.io/pure180/details/OXpNxM/
HTML:
<div class="col-md-4 col-sm-4">
<a href="http://www.google.com">
<div class="box">
<img class="img-responsive" src="http://placehold.it/767x767" />
<div class="overbox">
<div class="title overtext">Client</div>
<div class="tagline overtext">Tag</div>
</div>
</div>
</a>
</div>
<div class="col-md-4 col-sm-4">
<a href="http://www.google.com">
<div class="box">
<img class="img-responsive" src="http://placehold.it/767x767" />
<div class="overbox">
<div class="title overtext">Client</div>
<div class="tagline overtext">Tag</div>
</div>
</div>
</a>
</div>
<div class="col-md-4 col-sm-4">
<a href="http://www.google.com">
<div class="box">
<img class="img-responsive" src="http://placehold.it/767x767" />
<div class="overbox">
<div class="title overtext">Client</div>
<div class="tagline overtext">Tag</div>
</div>
</div>
</a>
</div>
</div>
</div>

Answer 4

I fixed with this
.box {
position: relative;
cursor: pointer;
max-width: 300px;
min-height: 100%;
overflow: hidden;
margin: 0 auto;
margin-bottom: 30px;}

Answer 5

Here's my approach: https://jsfiddle.net/5f285ask/3/
.box {
position: relative;
display: inline-block;
}
.box .overbox {
background-color: rgba(204, 36, 42, 0.75);
height: 100%;
left: 0;
opacity: 0;
position: absolute;
top: 0;
-webkit-transition: all 300ms ease-out;
-moz-transition: all 300ms ease-out;
-o-transition: all 300ms ease-out;
-ms-transition: all 300ms ease-out;
transition: all 300ms ease-out;
width: 100%;
}
.box:hover .overbox {
opacity: 1;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="col-md-4 col-sm-4">
<div class="box">
<a href="#">
<img alt="" src="http://placehold.it/300x300" class="img-responsive">
<div class="overbox">
overbox content
</div>
</a>
</div>
</div>