<div class="container">
  <div class="card">
    <div class="circle c-1">C</div>
    <div class="info">
      <h3>Card hover effects</h3>
      <p>Card design with hover effect by using pure CSS</p>
      <a href="#">READ MORE</a>
    </div>
  </div>
  <div class="card">
    <div class="circle c-2">H</div>
    <div class="info">
      <h3>Card hover effects</h3>
      <p>Card design with hover effect by using pure CSS</p>
      <a href="#">READ MORE</a>
    </div>
  </div>
  <div class="card">
    <div class="circle c-3">J</div>
    <div class="info">
      <h3>Card hover effects</h3>
      <p>Card design with hover effect by using pure CSS</p>
      <a href="#">READ MORE</a>
    </div>
  </div>
</div>
body{
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: sans-serif;
  min-height: 100vh;
  background: #f1f2f6;
}
.container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}

.container .card {
  position: relative;
  box-sizing: border-box;
  text-align: center;
  width: 300px;
  padding: 2rem;
  background: #fff;
  box-shadow: 0 5px 15px rgba(0, 0, 0, .1);
  border-radius: 5px;
  margin: 1rem;
  overflow: hidden;
}
.container .card:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  width: 50%;
  height: 100%;
  background: rgba(255, 255, 255, .1);
  pointer-events: none;
}

.container .circle {
  position: relative;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  color: #fff;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 2rem;
  font-weight: 700;
  transition: .5s; 
} 

.container .card .c-1{
  background: #e84393;
  box-shadow: 0 0 0 0 #e84393;
}

.container .card .c-2{
  background: #6c5ce7;
  box-shadow: 0 0 0 0 #6c5ce7;
}

.container .card .c-3{
  background: #f9ca24;
  box-shadow: 0 0 0 0 #f9ca24;
}

.container .card:hover .c-1{
  box-shadow: 0 0 0 300px #e84393;
}

.container .card:hover .c-2{
  box-shadow: 0 0 0 300px #6c5ce7;
}

.container .card:hover .c-3{
  box-shadow: 0 0 0 300px #f9ca24;
}

.container .card .info {
  position: relative;
  z-index: 1;
  transition: .5s;
}

.container .card:hover .info {
  color: #fff;
}

.container .card .info h3 {
  margin: 20px 0;
  font-size: 1.2rem;
}

.container .card .info p {
  margin: 0;
  padding: 0;
}

.container .card .info a {
  margin-top: 20px;
  padding: 10px 15px;
  display: inline-block;
  background: #fff;
  text-decoration: none;
  font-size: .8rem;
  font-weight: 500;
  border-radius: 2px;
  color: #000;
  cursor: pointer;
   box-shadow: 0 5px 15px rgba(0, 0, 0, .2);
}
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