/*//// Just styling ////*/
.popup-content h3{
  border-bottom: 1px solid #fff;
  font-size: 1.2em;
  margin-bottom: .5em;
}
/*//////////////////////*/
.popup{
  left: 0;
  position: absolute;
  top: 0%;
  transition: left .5s ease;
}
.popup-content{
    background-color: #dfdfdf;
    box-shadow:  5px 2px 15px black;
    box-sizing: border-box;    
    color: white;
    float: left;
    height: 200px;
    padding: 1em;
    width: 275px;    
}

.close{
  left: -275px;
}

.button{
  background-color:  #4a4d50;;  
  border-bottom-right-radius: 10px;
  border-top-right-radius: 10px;
  box-shadow:  5px 2px 15px black;   
  float: left;
  height: 50px;
  padding-top: 1.5em;
  width: 25px;  
}
.button::after{
    content:"◀";
    color: white;
    cursor: pointer;
    font-size: 1.2em;
    padding: 5px;
  }
.button-closed::after{
    content:"▶";
    color: white;
    cursor: pointer;
    font-size: 1.2em;
}