* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    background: linear-gradient(to right, #4e54c8, #8f94fb);
    height: 100vh;
    display: flex;
          align-items: center;
      justify-content: center;
}

.card-title {
    color: #4e54c8;
}

.card {
    background-color:  #17202a;
    box-shadow: rgba(0, 0, 0, 0.25) 0px 54px 55px, rgba(0, 0, 0, 0.12) 0px -12px 30px, rgba(0, 0, 0, 0.12) 0px 4px 6px, rgba(0, 0, 0, 0.17) 0px 12px 13px, rgba(0, 0, 0, 0.09) 0px -3px 5px;
}

#btn {
    background: linear-gradient(to right, #4e54c8, #8f94fb);
}

.form-control {
    background-color: #2e4053;
}

.list-group-item {
    background-color: #2e4053;
    width: 75%;
    margin: 10px auto;
    padding: 5px;
    border-radius: 10px;
}

li.check {
    text-decoration: line-through;
    animation: fade-out 10s ease-out both;
}

.badge {
    cursor: pointer;
}

i {
    cursor: pointer;
    color: #8f94fb;
    font-size: 18px;
    margin: 0px 5px;
}

@-webkit-keyframes fade-out {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
@keyframes fade-out {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}