.btn {
  display: inline-block;
  padding: .5em 1.5em;
  outline: 0;
  border: 0;
  border: 2px solid #39df7f;
  border-radius: 4px;
  background: none;
  box-shadow: none;
  color: #39df7f;
  text-align: center;
  text-decoration: none;
  font-weight: 400;
  font-size: 1em;
  line-height: 1.65em;
  cursor: pointer;

  -webkit-appearance: none;
}

.btn-demo {
  margin-right: 1rem;
  margin-bottom: 1rem;
}

.hljs {
  padding: 15px 20px;
  line-height: 1.3;
}


.tingle-demo {
  display: none;
}

.mr1 {
  margin-right: 10px;
}

.list-blh {
  line-height: 1.8;
}

img {
  max-width: 100%;
  height: auto;
}

.methods {
  display: table;
}

.methods {
  width: 100%;
  table-layout: fixed;
}

.methods tr:nth-child(odd) {
  background-color: #f9f9f9;
}

.methods td {
  padding: 10px;
}

.methods th {
  padding: 10px;
  background-color: #39df7f;
  color: #fff;
  text-align: left;
}

.footer {
  text-align: center;
}

.w20 {
  width: 20%;
}

.w60 {
  width: 60%;
}

/* tags
-------------------------------------------------------------- */

.tag {
  display: inline-block;
  padding: .1em .5em;
  border-radius: 4px;
  color: #fff;
  vertical-align: middle;
  font-size: 1.3rem;
}

.tag--warning {
  background-color: #f39c12;
}

/* animations
-------------------------------------------------------------- */

@keyframes github {
  0% {
    top: 220px;
    transform: rotate(180deg);
  }
  100% {
    top: 0;
    transform: rotate(0);
  }
}

/* responsive
-------------------------------------------------------------- */

@media (max-width: 540px) {
  .container {
    width: 90%;
  }

  .btn {
    display: block;
    margin-bottom: 20px;
    width: 100%;
  }

  .header__pic {
    width: 100px;
  }

  .title {
    margin-left: 0;
  }

  .title:before {
    display: none;
  }
}