Bootstrap 3 - How to maximize input width inside navbar

问题

Right now I have a navigation bar that looks like: http://bootply.com/78239

I want to maximize the width of the \"search\" text-input, without creating line-breaks (i.e., that the \"Clear\" link will be tight with the \"About\" link).

I only have basic experience with css and web-design. I read something about \"overflow: hidden\" tricks, but I don\'t understand how to use it when there are more elements to the right of the targeted element.

Thanks

EDIT:

A partial solution can be to set the width \"manually\" for each case, like in http://bootply.com/78247 :

@media (max-width: 767px) {
  #searchbar > .navbar-form {
    width: 100%;
  }
}

@media (min-width: 768px) and (max-width: 991px) {
  #searchbar > .navbar-form {
    width: 205px;
  }
}

@media (min-width: 992px) and (max-width: 1199px) {
  #searchbar > .navbar-form {
    width: 425px;
  }
}

@media (min-width: 1200px) {
  #searchbar > .navbar-form {
    width: 625px;
  }
}

but this solution will not work when the menu\'s texts are \"dynamic\" (for example, contain \"Hello username\").

I suppose it is not a big issue if you assume that there is a limit on the menu\'s texts\' widths - it\'s just annoying to calculate/test those widths manually. I\'m just curious to know if there\'s a neat way to do it automatically.

回答1:

For Bootstrap version 3.2 and up you should also set the display:table; for the input-group and set the width to 1% for the input-group-addon.

<div style="display:table;" class="input-group">
            <span style="width: 1%;" class="input-group-addon"><span class="glyphicon glyphicon-search"></span></span>
            <input type="text" autofocus="autofocus" autocomplete="off" placeholder="Search Here" name="search" style="" class="form-control">
          </div>

Demo Bootstrap version 3.2+: http://www.bootply.com/t7O3HSGlbc

If you allow changing the position of your navbar elements? I don't understand "without creating line-breaks (i.e., that the "Clear" link will be tight with the "About" link)." Try this: http://bootply.com/78374.

What i did:

Drop the float left of the form (by dropping the navbar-left class)
Give other navbar elements a right float (the navbar-right class)
Set display of the form-group to inline (style="display:inline")
Change the position of the elements (the right floated first)

Related question:

Expand div to max width when float:left is set

html:

<div class="navbar navbar-inverse navbar-fixed-top">
  <div class="container">
    <div class="navbar-header">
      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <a class="navbar-brand" href="#">My Project</a>
    </div>
    <div class="navbar-collapse collapse" id="searchbar">

      <ul class="nav navbar-nav navbar-right">
        <li><a href="about.html">About</a></li>
        <li id="userPage">
          <a href="#@userpage"><i class="icon-user"></i> My Page</a>
        </li>
        <li><a href="#logout" data-prevent="">Logout</a></li>
      </ul>
      <ul class="nav navbar-nav navbar-right">
        <li><a href="#" title="Start a new search">Clear</a></li>
      </ul>



     <form class="navbar-form">
        <div class="form-group" style="display:inline;">
          <div class="input-group">
            <span class="input-group-addon"><span class="glyphicon glyphicon-search"></span></span>
            <input class="form-control" name="search" placeholder="Search Here" autocomplete="off" autofocus="autofocus" type="text">
          </div>
        </div>
      </form>

    </div><!--/.nav-collapse -->
  </div>
</div>

回答2:

Two things worked for me here. Adding Orens media queries, and also adding a display: inline to that searchbar form group:

<li id="searchbar">
          <form id="search_form" class="navbar-form navbar-left navbar-input-group " role="search">
            <div class="input-group">
              <div class="input-group-btn">
                <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false">All <span class="caret"></span>
                </button>
              </div>
              <div class="form-group">
                <input name="search_input" type="text" class="form-control typeahead" placeholder="Search for items or shops" autofocus="autofocus">
              </div>
              <span class="input-group-btn">
          <button type="submit" class="btn btn-default"><i class="fa fa-search"></i>
          </button>
          </span>
            </div>
          </form>
        </li>

With the css:

#search_form > .input-group > .form-group {
  display: inline;
}

来源：https://stackoverflow.com/questions/18552714/bootstrap-3-how-to-maximize-input-width-inside-navbar

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