Changes are not applying to AngularJS view file - angularjs

Question

I am using AngularJS as my front-end, below is my HTML file
<div >
<div class="modal-dialog ">
<div class="modal-content">
<div class="modal-body">
<div style="margin-bottom: 10px;">
<button type="button" ng-click='cancel()' class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title" id="myModalLabel">{{alert.summary}}</h4>
</div>
<form name="alertForm" novalidate>
<div ng-if="!displayMap">
<alert ng-if='displayAlertMsg' type="alertMsg.type">{{alertMsg.message}}</alert>
<input type="hidden" ng-model="alert.source" />
<div class="field-box">
<span class="checkboxLabel">Public: </span><input type="checkbox" id='updateType' ng-true-value="1" ng-false-value="0" ng-model="alert.publicAlert"></input>
</div>
<div class="field-box">
<label>qweqwName:</label>
<input class="span5" id='updateName' ng-model="alert.summary" required />
</div>
<div class="field-box">
<label>Notes:</label>
<textarea id='updateNotes' ng-model="alert.details" rows="2" required ></textarea>
</div>
<div class="span3" style="margin-left: 0px;">
<div class="field-box">
<label>Priority:</label>
<select ng-model="updatePriority" ng-options="p.name for p in priorities" ng-change='updateP(updatePriority)'></select>
</div>
<div class="field-box">
<label>Status:</label>
<select ng-model="updateState" ng-options="s.name for s in statusList" ng-change="updateS(updateState)"></select>
</div>
</div>
</div>
<div id="alertmap-buttons" class="span2 no-margin">
<button id="alert-add-location" class="btn btn-default pull-left" ng-click="displayMap = !displayMap"><span ng-if="!displayMap">Add Location</span><span ng-if="displayMap">Done</span></button>
<button id="alert-cancel-location" class="btn btn-danger" ng-if="displayMap">Cancel</button>
</div>
<div id="latlng-label" class='span3 pull-right no-margin'>
<div class="pull-left"><label class="latlng-label">lat: {{alert.latitude}}</label></div>
<div class="pull-right"><label class="latlng-label">long: {{alert.longitude}}</label></div>
</div>
<!--Select Coords from map-->
<!--Google Map Directive-->
<div ng-init="displayMap = false" ng-if="displayMap">
<google-map class="create-alert-map angular-google-map-container" center="map.center" zoom="map.zoom"
draggable='true'
events="mapEvents">
<markers models="themarkers"
coords="'self'"
>
</markers>
</google-map>
</div>
<!--Lat and Long
<input placeholder="Latitude" class="span2" id='updateLat' ng-model="alert.latitude" />
<input style="float: right" placeholder="Longitude" class="span2" id='updateLong' ng-model="alert.longitude" /-->
</form>
</div>
<div ng-if="!displayMap" class="modal-footer">
<button type="button" class="btn btn-default" ng-click="submit()" ng-disabled="alertForm.$invalid">Save</button>
<button type="button" class="btn btn-default" ng-click="cancel()">Close</button>
</div>
</div>
</div>
This file is given to me by client and he want some CSS changes etc in that. But when I try to edit the file nothing is happening to the modal dialog box, for example if I change button text from Save to Submit it's not applying in the file. How come this???
If this information is not enough I can give controller JS file also. Thanks..