<div class="wrapper">
      <a href="#" class="box">
        <div class="single-box">
          <div class="box-content">
            <div class="sides side-1" style="background-image: url(img/1.jpg);"></div>
            <div class="sides side-2">
              <div class="content">
                <h2>John Doe</h2>
                <p>Lorem ipsum dolor sit amet consectetur, adipisicing elit. Consequatur accusantium, maiores similique est aliquam laborum!</p>
                <p class="socials">
                  <i class="fa fa-facebook"></i>
                  <i class="fa fa-youtube"></i>
                  <i class="fa fa-linkedin"></i>
                </p>
              </div>
            </div>
          </div>
        </div>
      </a>
      <a href="#" class="box">
        <div class="single-box">
          <div class="box-content">
            <div class="sides side-1" style="background-image: url(img/2.jpg);"></div>
            <div class="sides side-2">
              <div class="content">
                <h2>Dave Wood</h2>
                <p>Lorem ipsum dolor sit amet consectetur, adipisicing elit. Consequatur accusantium, maiores similique est aliquam laborum!</p>
                <p class="socials">
                  <i class="fa fa-facebook"></i>
                  <i class="fa fa-youtube"></i>
                  <i class="fa fa-linkedin"></i>
                </p>
              </div>
            </div>
          </div>
        </div>
      </a>
      <a href="#" class="box">
        <div class="single-box">
          <div class="box-content">
            <div class="sides side-1" style="background-image: url(img/3.jpg);"></div>
            <div class="sides side-2">
              <div class="content">
                <h2>Larry Jones</h2>
                <p>Lorem ipsum dolor sit amet consectetur, adipisicing elit. Consequatur accusantium, maiores similique est aliquam laborum!</p>
                <p class="socials">
                  <i class="fa fa-facebook"></i>
                  <i class="fa fa-youtube"></i>
                  <i class="fa fa-linkedin"></i>
                </p>
              </div>
            </div>
          </div>
        </div>
      </a>
    </div>

*{
    margin: 0;
    padding: 0;
}
.wrapper{
    min-height: 100vh;
    background-color: #00112c;
    display: flex;
    align-items: center;
    justify-content: center;
}
.box{
    margin: 20px;
}
.single-box{
    width: 300px;
    height: 300px;
    perspective: 1200px;
}
.box-content{
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    transform: translateZ(-150px);
    transition: all 1s;
}
.sides{
    position: absolute;
    width: 300px;
    height: 300px;
    text-align: center;
}
.side-1{
    transform: rotateY(0deg) translateZ(150px);
    z-index: 2;
    background-size: cover;
    background-position: center center;
}
.side-2{
    color: #fff;
    background-color: deepskyblue;
    transform: rotateY(90deg) translateZ(150px);
}
.box:hover .box-content{
    transform: translateZ(-150px) rotateY(-90deg);
}
.content{
    display: flex;
    justify-content: center;
    flex-direction: column;
    height: 100%;
}
.content h2{
    font-family: alfa slab one;
    font-size: 25px;
}
.content p{
    font-size: 15px;
    line-height: 25px;
    font-family: 'Montserrat', sans-serif;
}
.socials{
    margin-top: 30px;
}
.socials i{
    margin: 0 15px;
}

@media (max-width:991px){
    .wrapper{
        flex-direction: column;
    }
}