header {
    width: 100%;
    line-height: 84px;
    height: 84px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    border: 0;
}

header .logo {
    width: 180px;
    height: 84px;
    line-height: 84px;
    margin: 0;
    padding: 0;
    display: inline-block;
}

header .logo img {
    vertical-align: middle;
}

header nav {
    display: inline-block;
}

header nav ul {
    display: inline-block;
    margin: 0;
    padding: 0;
}

header nav ul li {
    display: inline-block;
    margin: 0 0 0 36px;
    padding: 0;
    height: 35px;
    line-height: 35px;
    color: #000000;
    font-size: 16px;
}

header nav ul li a {
    text-decoration: none;
}

header .hamburger {
  height: 0;
  overflow: hidden;
}

.nav.show {
  display: block;
}

@media screen and (max-width: 768px) {
  header .hamburger.show,
  header .hamburger {
    display: block;
    height: auto;
    overflow: visible;
  }

    .nav {
        background: #EFC41B;
        position: absolute;
        width: 100%;
        left: 0px;
        top: 83px;
        line-height: 0;
        border-bottom: 1px solid rgba(34, 34, 34, 0.1);
        padding-bottom: 10px;
        display: none;
    }

      .nav.show {
        display: block;
      }

    header nav ul li {
        margin: 0 0 0 24px;
        display: block;
        height: unset; 
    }

    header nav ul li a {
        padding: 5px 0;
        display: block;
    }

}