* {
    margin: 0;
    padding: 0;
  }
  *,
  *:after,
  *:before {
    box-sizing: border-box;
  }
  ol,
  ul {
    list-style: none;
  }
  .window {
  }
  .mobile {
    background-color: #19b698;
    border: 0 solid #333;
    border-width: 50px 15px;
    border-radius: 12px;
    box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.6);
    margin: 20px auto;
    max-width: 300px;
    height: 560px;
    overflow: hidden;
    position: relative;
  }
  .mainContainer {
    background-color: #fff;
    height: 50px;
    position: fixed;
    z-index: 999;
    width: 100%;
    top: 0;
  }
  .logo {
    color: #fff;
    font-size: 20px;
    line-height: 50px;
    padding: 0 0 0 20px;
    text-transform: capitalize;
  }
  /* menu button */
  .menuBtn {
    height: 30px;
    width: 30px;
    position: fixed;
    right: 20px;
    top: 10px;
    z-index: 101;
  }
  .menuBtn > span {
    background-color: #091a2f;
    border-radius: 1px;
    height: 2px;
    width: 100%;
    position: absolute;
    left: 50%;
    top: 50%;
    margin: -1px 0 0 -15px;
    transition: height 100ms;
  }
  .menuBtn > span:after,
  .menuBtn > span:before {
    content: '';
    background-color: #091a2f;
    border-radius: 1px;
    height: 2px;
    width: 100%;
    position: absolute;
    left: 50%;
    margin-left: -15px;
    transition: all 200ms;
  }
  .menuBtn > span:after {
    top: -7px;
  }
  .menuBtn > span:before {
    bottom: -7px;
  }
  .menuBtn.act > span {
    height: 0;
  }
  .menuBtn.act > span:after,
  .menuBtn.act > span:before {
    background-color: #091a2f;
    top: 1px;
  }
  .menuBtn.act > span:after {
    transform: rotate(45deg);
  }
  .menuBtn.act > span:before {
    transform: rotate(-45deg);
  }
  /* main menu block */
  .mainMenu {
    background-color: #fff;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    height: 100%;
    width: 100%;
    display: table;
    text-align: center;
    opacity: 0;
    transition: all 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    transform: scale(0);
  }
  .mainMenu.act {
    opacity: 1;
    transform: scale(1);
  }
  .mainMenu.act ul li {
    opacity: 1;
    transform: translateX(0);
  }
  .mainMenu ul {
    display: table-cell;
    vertical-align: middle;
  }
  .mainMenu li {
    padding: 8px 0;
    transition: all 400ms 510ms;
    opacity: 0;
  }
  .mainMenu li:nth-child(odd) {
    transform: translateX(30%);
  }
  .mainMenu li:nth-child(even) {
    transform: translateX(-30%);
  }
  .mainMenu li:last-child {
    transform: none;
  }
  .mainMenu a {
    color: #091a2f;
    display: inline-block;
    font-size: 20px;
    font-weight: 700;
  }
  .mainMenu a.suBtn {
    color: #fff;
  }
  /* sign up button */
  .suBtn {
    background-color: #091a2f;
    border-radius: 5px;
    padding: 10px 20px;
  }