search-bar-toggle like this:
<a href="#!" class="btn search-bar-toggle">Open Search Bar</a>
You can change default content of search bar.
<div class="search-bar">
<form action="#!">
<!-- Header -->
<a class="search-bar-toggle grey-text text-darken-2" href="#!"><i class="mdi-navigation-close"></i></a>
<!-- Search Input -->
<div class="input-field">
<i class="mdi-action-search prefix"></i>
<input type="text" name="con-search" placeholder="Type to search...">
</div>
<h4>Serach results for 'Con'</h4>
<hr>
<!-- Search Results -->
<div class="search-results">
<div class="row">
<div class="col s12 l4">
<h4>Users</h4>
<div class="each-result">
<img src="assets/_con/images/user2.jpg" alt="Felecia Castro" class="circle photo">
<div class="title">Felecia Castro</div>
<div class="label">Content Manager</div>
</div>
...
</div>
...
</div>
</div>
</form>
</div>