.btn {
    outline: none;
    border: none;
    border-radius: 30px;
    padding: 15px 25px;
    font-size: 22px;
    text-decoration: none;
    margin: 20px;
    color: #fff;
    position: relative;
    display: inline-block;
    text-transform: uppercase;
    font-weight: 600;
 }

 .btn:active{
    transform: translate(0px, 5px);
    box-shadow: 0px 1px 0px 0px rgba(#000, .25);   
 }

 .btn--blue {
    background-color: #55acee;
    box-shadow: 0px 5px 0px 0px #3C93D5;
    
 }

 .column {
    float: left;
    text-align:center;
  }
  
  /* Left and right column */
  .column.side {
    width: 30%;
  }
  
  /* Middle column */
  .column.middle {
    width: 70%;
  }

input {
    background-color:rgba(255, 255, 255, 0.5);
    width: 150px;
    height: 20px;
    border-radius: 30px;
    padding: 20px;
    border: none;
    margin-top: 20px;
}

li {
    color:white;
    border-radius:30px;
    padding: 3px;
}

body {
    background: #a770ef; /* fallback for old browsers */
    background: -webkit-linear-gradient(to right, #a770ef, #cf8bf3, #fdb99b); /* Chrome 10-25, Safari 5.1-6 */
    background: linear-gradient(to right, #a770ef, #cf8bf3, #fdb99b); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
}

ul {
    list-style-type: none;
    justify-content: center;
    padding-inline-start: 0px;
}

li {
    text-transform: capitalize;
}

#results {
    text-align:center;
}
.msg {
    margin-top: 20px;
    justify-content:center;
    display:inline-block;
    width: 50%;
    font-family: 'Quicksand', sans-serif;
    color:white;
    font-size: 20px;
}



.remove{
    background-color:transparent(0,0,0,0);
}

.btn-remove{
    border-radius:50%;
    border: 0px;
    color:white;
    background-color:rgba(0,0,0,0);
}

.card {
  animation: shake 0.3s;
  transform: translate3d(0, 0, 0);
  backface-visibility: hidden;
  perspective: 2000px;
}

.card.flipped {
    animation: shake 0.3s;
    transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
    perspective: 2000px;
  }

@keyframes shake {
    10%, 90% {
      transform: translate3d(-4px, 0, 0);
    }
    
    20%, 80% {
      transform: translate3d(4px, 0, 0);
    }
  
    30%, 50%, 70% {
      transform: translate3d(-4px, 0, 0);
    }
  
    40%, 60% {
      transform: translate3d(4px, 0, 0);
    }
}