Подробное описание и демонстрацией работы эффекта наведения под номером №93 для бибилиотеки Bootstrap. Html и CSS код для реализации hover effect как на изображении.

html разметка для реализации данного эффекта

<div class="container">
<div class="row">
<div class="col-md-4 col-sm-6">
<div class="box">
<img src="https://fokit.ru/demo/images/hover-effect/hover-effect-style-93/img-1.jpg"/>
<div class="box-icon">
<div class="icon fa fa-globe"></div>
<div class="box-inner">
<div class="border border-top"></div>
<div class="border border-right"></div>
<div class="border border-bottom"></div>
<div class="border border-left"></div>
</div>
</div>
<div class="box-content">
<h4 class="title">willimson</h4>
<p class="description">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse hendrerit fermentum nibh id luctus. Nunc aliquet.</p>
<a class="read-more" href="#">Read More</a>
</div>
</div>
</div>

<div class="col-md-4 col-sm-6">
<div class="box">
<img src="https://fokit.ru/demo/images/hover-effect/hover-effect-style-93/img-2.jpg"/>
<div class="box-icon">
<div class="icon fa fa-briefcase"></div>
<div class="box-inner">
<div class="border border-top"></div>
<div class="border border-right"></div>
<div class="border border-bottom"></div>
<div class="border border-left"></div>
</div>
</div>
<div class="box-content">
<h4 class="title">Kristiana</h4>
<p class="description">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse hendrerit fermentum nibh id luctus. Nunc aliquet.</p>
<a class="read-more" href="#">Read More</a>
</div>
</div>
</div>
</div>
</div>

css разметка для реализации данного эффекта

.box{
overflow: hidden;
position: relative;
}
.box img{
width: 100%;
height: auto;
}
.box .box-icon{
width: 60px;
height: 60px;
background: rgba(255,255,255,0.6);
position: absolute;
top: 40%;
left: 0;
right: 0;
margin: 0 auto;
text-align: center;
-moz-transition: all 0.2s linear 0s;
-o-transition: all 0.2s linear 0s;
-ms-transition: all 0.2s linear 0s;
-webkit-transition: all 0.2s linear 0s;
transition: all 0.2s linear 0s;
}
.box:hover .box-icon{
width: 100%;
height: 100%;
top: 0;
left: 0;
}
.box .icon{
font-size: 30px;
color: #000;
line-height: 60px;
text-align: center;
opacity: 1;
-moz-transition: all 0.01s linear 0.2s;
-webkit-transition: all 0.01s linear 0.2s;
-o-transition: all 0.01s linear 0.2s;
-ms-transition: all 0.01s linear 0.2s;
transition: all 0.01s linear 0.2s;
}
.box:hover .icon{
opacity: 0;
-moz-transition-delay: 0s;
-o-transition-delay: 0s;
-ms-transition-delay: 0s;
-webkit-transition-delay: 0s;
transition-delay: 0s;
}
.box .box-inner{
width: 90%;
height: 90%;
position: absolute;
top: 5%;
left: 5%;
opacity: 0;
-moz-transition: all 0.01s linear 0s;
-webkit-transition: all 0.01s linear 0s;
-o-transition: all 0.01s linear 0s;
-ms-transition: all 0.01s linear 0s;
transition: all 0.01s linear 0s;
}
.box:hover .box-inner{
opacity: 1;
}
.box .border{
background: #000;
position: absolute;
-moz-transition: all 0.4s linear 0s;
-o-transition: all 0.4s linear 0s;
-ms-transition: all 0.4s linear 0s;
-webkit-transition: all 0.4s linear 0s;
transition: all 0.4s linear 0s;
}
.box:hover .border-top,
.box:hover .border-left,
.box:hover .border-bottom,
.box:hover .border-right{
-moz-transform: rotate(90deg);
-o-transform: rotate(90deg);
-ms-transform: rotate(90deg);
-webkit-transform: rotate(90deg);
transform: rotate(90deg);
-moz-transition-delay: 0.2s;
-o-transition-delay: 0.2s;
-ms-transition-delay: 0.2s;
-webkit-transition-delay: 0.2s;
transition-delay: 0.2s;
}
.box .border-top{
width: 100%;
height: 2px;
top: 0;
left: 2px;
-moz-transform-origin: left top;
-o-transform-origin: left top;
-ms-transform-origin: left top;
-webkit-transform-origin: left top;
transform-origin: left top;
}
.box .border-left{
width: 2px;
height: 100%;
bottom: 0;
left: 0;
-moz-transform-origin: left bottom;
-ms-transform-origin: left bottom;
-o-transform-origin: left bottom;
-webkit-transform-origin: left bottom;
transform-origin: left bottom;
}
.box .border-bottom{
width: 100%;
height: 2px;
bottom: 0;
right: 2px;
-moz-transform-origin: right bottom;
-ms-transform-origin: right bottom;
-o-transform-origin: right bottom;
-webkit-transform-origin: right bottom;
transform-origin: right bottom;
}
.box .border-right{
width: 2px;
height: 100%;
top: 0;
right: 0;
-moz-transform-origin: right top;
-o-transform-origin: right top;
-ms-transform-origin: right top;
-webkit-transform-origin: right top;
transform-origin: right top;
}
.box .box-content{
width: 100%;
height: 100%;
position: absolute;
top: 0;
left: 0;
text-align: center;
color: #fff;
opacity: 0;
-moz-transform: scale(0);
-o-transform: scale(0);
-ms-transform: scale(0);
-webkit-transform: scale(0);
transform: scale(0);
-moz-transition: all 0.3s linear 0s;
-o-transition: all 0.3s linear 0s;
-ms-transition: all 0.3s linear 0s;
-webkit-transition: all 0.3s linear 0s;
transition: all 0.3s linear 0s;
}
.box:hover .box-content{
opacity: 1;
-moz-transform: scale(1);
-o-transform: scale(1);
-ms-transform: scale(1);
-webkit-transform: scale(1);
transform: scale(1);
-moz-transition-delay: 0.65s;
-ms-transition-delay: 0.65s;
-webkit-transition-delay: 0.65s;
-o-transition-delay: 0.65s;
transition-delay: 0.65s;
}
.box .title{
width: 80%;
margin: 20% auto 0;
background: rgba(0,0,0,0.7);
font-size: 22px;
font-weight: 400;
text-transform: uppercase;
padding: 6px 0;
position: relative;
}
.box .title:before{
content: "";
display: block;
width: 0;
height: 0;
border: 20px solid transparent;
border-top: 20px solid rgba(0,0,0,0.7);
position: absolute;
top: 100%;
left: 42%;
}
.box .description{
width: 80%;
margin: 40px auto 0;
font-size: 14px;
font-weight: 400;
padding: 6px 10px;
background: rgba(0,0,0,0.8);
}
.box .read-more{
display: inline-block;
margin: 30px auto 0;
padding: 7px 20px;
background: #1b8070;
font-size: 15px;
color: #fff;
text-transform: capitalize;
border-radius: 5px;
box-shadow: inset 0px 0px 7px 1px rgba(0,0,0,0.2);
}
@media only screen and (max-width:990px){
.box{ margin-bottom: 30px; }
}
@media only screen and (max-width:360px){
.box .title{ margin: 10% auto 0; }
}
@media only screen and (max-width:359px){
.box .description{ margin: 25px auto 0; }
.box .read-more{ margin: 15px auto 0; }
}

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