Navigasi CSS3 Sohtanaka

Navigasi Sohtanaka, versi CSS3

Eksperimen sederhana untuk menciptakan navigasi dengan efek hover menggulung dari Sohtanaka yang dulu pernah Saya tuliskan di artikel ini. Kali ini Saya hanya akan menggunakan CSS3 Transisi untuk menganimasikan efek menggulung tiap item menu:

HTML

<nav id='rolling-nav'>
    <ul>
        <li><a href='#' data-clone='Home'>Home</a></li>
        <li><a href='#' data-clone='About'>About</a></li>
        <li><a href='#' data-clone='Portfolio'>Portfolio</a></li>
        <li><a href='#' data-clone='Comments'>Comments</a></li>
        <li><a href='#' data-clone='Contact'>Contact</a></li>
    </ul>
</nav>

CSS

#rolling-nav {
  font:normal 12px 'Trebuchet MS',Arial,Sans-Serif;
  color:white;
  text-transform:uppercase;
}

#rolling-nav ul {
  height:50px;
  margin:0px 0px;
  padding:0px 0px;
  overflow:hidden;
}

#rolling-nav li {
  float:left;
  display:inline;
  list-style:none;
  margin:0px 0px;
  padding:0px 0px;
}

#rolling-nav a,
#rolling-nav a:before {
  display:block;
  margin:0px 0px;
  padding:0px 30px;
  line-height:50px;
  color:white;
  text-decoration:none;
  background-color:#900;
  background-image:-webkit-linear-gradient(top, #900 0%, #6A0808 50%, #620303 50%, #6A0808 100%);
  background-image:-moz-linear-gradient(top, #900 0%, #6A0808 50%, #620303 50%, #6A0808 100%);
  background-image:-ms-linear-gradient(top, #900 0%, #6A0808 50%, #620303 50%, #6A0808 100%);
  background-image:-o-linear-gradient(top, #900 0%, #6A0808 50%, #620303 50%, #6A0808 100%);
  background-image:linear-gradient(top, #900 0%, #6A0808 50%, #620303 50%, #6A0808 100%);
  -webkit-box-shadow:inset 0px 1px 0px rgba(255,255,255,0.1);
  -moz-box-shadow:inset 0px 1px 0px rgba(255,255,255,0.1);
  box-shadow:inset 0px 1px 0px rgba(255,255,255,0.1);
  position:relative;
  /* CSS Transisi */
  -webkit-transition:all 0.3s ease-in-out;
  -moz-transition:all 0.3s ease-in-out;
  -ms-transition:all 0.3s ease-in-out;
  -o-transition:all 0.3s ease-in-out;
  transition:all 0.3s ease-in-out;
}

#rolling-nav a:before {
  content:attr(data-clone); /* Memuat data atribut */
  position:absolute;
  top:100%;
  left:0px;
  display:block;
  background-color:white;
  background-image:-webkit-linear-gradient(top, #ddd, white);
  background-image:-moz-linear-gradient(top, #ddd, white);
  background-image:-ms-linear-gradient(top, #ddd, white);
  background-image:-o-linear-gradient(top, #ddd, white);
  background-image:linear-gradient(top, #ddd, white);
  border-top:2px solid rgba(0,0,0,0.2);
  color:#333;
}

#rolling-nav a:hover {
  margin-top:-50px;
  margin-bottom:1px;
}

Lihat Demo

Atribut data-clone digunakan untuk menyimpan nilai kloning yang dituliskan secara manual menggantikan fungsi .clone() dalam JQuery. Efek animasi dibuat dengan cara menganimasikan properti margin dengan CSS transisi.