css - Hamburger Button in Bootstrap -

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i want fix classic bootstrap style hamburger button on navbar, 1 appears toggle button when screen size gets sufficiently small.

anyways, how can display button is, without having implement through navbar-toggle class?

edit: here button have: 

<div>     <div class="center">         <button type="button" class="btn">☰</button>     </div> </div>       body { background: #222;

}

.center {     width: 100px;     margin: 50px auto; }  .btn {   background-color: #222;   border: 1px solid #3a3a3a;   color: #d3d3d3;   width: 42px;   margin-left: 42px;   font-size: 23px;   height: 34px;   transition: color 0.45s;   transition: border 0.45s; }  button.btn:hover {   color: #2978e0;   border: 1px solid #61a5ff; }

https://jsfiddle.net/rstty1ye/

using utf-8 character mentioned on tutsplus.com it's not original finding or idea.

nevermind, figured out.

created custom button , used utf-8 character: trigram heaven bars.


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