.container {
padding-right: 2px;
padding-left: 2px;
margin-right: auto;
margin-left: auto;
}
.col-xs-1,
.col-sm-1,
.col-md-1,
.col-lg-1,
.col-xs-2,
.col-sm-2,
.col-md-2,
.col-lg-2,
.col-xs-3,
.col-sm-3,
.col-md-3,
.col-lg-3,
.col-xs-4,
.col-sm-4,
.col-md-4,
.col-lg-4,
.col-xs-5,
.col-sm-5,
.col-md-5,
.col-lg-5,
.col-xs-6,
.col-sm-6,
.col-md-6,
.col-lg-6,
.col-xs-7,
.col-sm-7,
.col-md-7,
.col-lg-7,
.col-xs-8,
.col-sm-8,
.col-md-8,
.col-lg-8,
.col-xs-9,
.col-sm-9,
.col-md-9,
.col-lg-9,
.col-xs-10,
.col-sm-10,
.col-md-10,
.col-lg-10,
.col-xs-11,
.col-sm-11,
.col-md-11,
.col-lg-11,
.col-xs-12,
.col-sm-12,
.col-md-12,
.col-lg-12 {
position: relative;
min-height: 1px;
padding-right: 2px;
padding-left: 2px;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />
<div class="container">
<div class="row" style="background-color:#eee; border: 1px solid #888;">
<div class="col-xs-4">
<input name="srcCity" type="text" class="form-control col-lg-4" placeholder="City">
</div>
<div class="col-xs-4">
<select name="srcState" data-country="US" class="form-control col-lg-4" data-state="CA"></select>
</div>
<div class="col-xs-4">
<input name="srcZip" type="text" class="form-control col-lg-4" placeholder="Zip">
</div>
</div>