.card {
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2);
    transition: 0.3s;
    margin:5px;
  }

  .card:hover {
    box-shadow: 0 8px 12px 0 rgba(0,0,0,0.2);
  }

  .container {
    padding: 2px 16px;
  }
  h2 {
    padding: 10px 0px 0 10px;
  }
  li {
    width: 350px;

  }
  body{
    min-width: 350px;
    min-height: 400px;
  }
  .matbut {
    border: none;
    outline: none;
    cursor: pointer;
    color: white;
    margin: 10px 10px 10px 0px;
    padding: 10px 10px;
    border-radius: 10px;
    font-size: medium;
    font-style: bold;
    box-shadow: 2px 2px 4px rgba(0, 0, 0, .4);
    background: #FF9800;
  }

  .matbut{
    position: relative;
    overflow: hidden;
  }

.truncate {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 80%;
}

  .matbut:after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, .5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
  }
   .card:after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, .5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
  }

  @keyframes ripple {
    0% {
      transform: scale(0, 0);
      opacity: 1;
    }
    20% {
      transform: scale(25, 25);
      opacity: 1;
    }
    100% {
      opacity: 0;
      transform: scale(40, 40);
    }
  }

  .matbut:focus:not(:active)::after {
    animation: ripple 1s ease-out;
  }
  .card:focus:not(:active)::after {
    animation: ripple 1s ease-out;
  }