* {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    box-sizing: border-box;
}

.material-icons{
    display: inline-flex;
    vertical-align: top;
    font-size: 32px;
}

body {
    min-height: 100vh !important;
    background: #111;
}

#app {
    padding: 40px 4%;
}

/* width */
::-webkit-scrollbar {
    width: 10px;
}

/* Track */
::-webkit-scrollbar-track {
    background: transparent;
}

/* Handle */
::-webkit-scrollbar-thumb {
    background: #888;
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
    background: #555;
}

.center {
    position: fixed;
    top: 50%;
    left: 50%;
    /* bring your own prefixes */
    transform: translate(-50%, -50%);
}

.btn {
    background-color: DodgerBlue;
    border: none;
    color: white;
    cursor: pointer;
    line-height: 30px;
    font-size: 40px;
    padding: 20px;
    outline: none;
}

/* Darker background on mouse-over */
.btn:hover {
    background-color: RoyalBlue;
}



ul {
  display: flex;
  flex-wrap: wrap;
}
li {
  height: 40vh;
  flex-grow: 1;
  list-style: none;
}
li:last-child {
  flex-grow: 10;
}
img {
  max-height: 100%;
  min-width: 100%;
  object-fit: cover;
  vertical-align: bottom;
  animation: fade-in 1s;
  padding: 20px;
}
@keyframes fade-in {
  0%   {opacity: 0;}
  50%   {opacity: 0;}
  100% {opacity: 1;}
}

@media (max-aspect-ratio: 1/1) {
  li {
    height: 30vh;
  }
}
@media (max-height: 480px) {
  li {
    height: 80vh;
  }
}
@media (max-aspect-ratio: 1/1) and (max-width: 480px) {
  ul {
    flex-direction: row;
  }

  li {
    height: auto;
    width: 100%;
  }
  img {
    width: 100%;
    max-height: 75vh;
    min-width: 0;
  }
}