/* Credit image : Unsplash - pine watt */
@import url(https://fonts.googleapis.com/css?family=Open+Sans);

$font-family: 'Open Sans', sans-serif;

*,
*:before,
*:after{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body{
  background: #f9f9f9;
  font-family: $font-family;
  font-size: 16px;
}

a{
  color: inherit;
  text-decoration: none;
}

h2{
  color: #c55;
  padding: 50px 0;
  text-align: center;
  text-transform: uppercase;
  font-size: 1.8rem;
}

.container{
  background: url('https://source.unsplash.com/2Hzmz15wGik');
  background-size: cover;
  background-position: center center;
  position: relative;
  margin: auto;
  width: 250px;
  height: 250px;
  -webkit-border-radius: 50%;
  -moz-border-radius: 50%;
  border-radius: 50%;
  cursor: pointer;
  overflow: hidden;
  
  &:hover .overlay{
    opacity: 1;
    width: 100%;
    height: 100%;
    
  }
  
  &:hover span{
    opacity: 1;
    -webkit-transform: scale(1);
    transform: scale(1);
    -webkit-transition: transform .5s ease, opacity 1.3s ease;
    transition: transform .5s ease, opacity 1.3s ease;
  }
  
  .overlay{
    background: rgba(0,0,0,0.4);
    position: absolute;
    margin: auto;
    width: 0px;
    height: 0px;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;

    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    border-radius: 50%;
    
    opacity: 0;
    
    -webkit-transition: .4s ease;
    transition: .4s ease;
    
  }
  span{
    color: #fff;
    text-align: center;
    position: absolute;
    margin: auto;
    width: 200px;
    height: 30px;
    line-height: 30px;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    opacity: 0;
    -webkit-transform: scale(0);
    transform: scale(0);
    -webkit-transition: transform .5s ease, opacity .7s ease;
    transition: transform .5s ease, opacity .7s ease;
  }
}