diff --git a/conf/locale/locale_en-US.ini b/conf/locale/locale_en-US.ini
index 0a7e3591c..9abdabcaa 100644
--- a/conf/locale/locale_en-US.ini
+++ b/conf/locale/locale_en-US.ini
@@ -415,6 +415,8 @@ release.save_draft = Save Draft
 release.edit_release = Edit Release
 release.tag_name_already_exist = Release with this tag name has already existed.
 
+download = Download
+
 [org]
 org_name_holder = Organization Name
 org_name_helper = Great organization names are short and memorable.
diff --git a/templates/repo/nav.tmpl b/templates/repo/nav.tmpl
index dfcfd7454..f2759a2e6 100644
--- a/templates/repo/nav.tmpl
+++ b/templates/repo/nav.tmpl
@@ -8,9 +8,10 @@
             <div class="col-md-5 actions text-right clone-group-btn">
                 {{if not .IsBareRepo}}
                 <div class="btn-group" id="repo-clone">
-                    <a class="btn btn-default" href="{{.RepoLink}}/archive/{{.BranchName}}/{{.Repository.Name}}.zip"><i class="fa fa-download fa-lg fa-m"></i></a>
+                    <a class="btn btn-default" href="{{.RepoLink}}/archive/{{.BranchName}}/{{.Repository.Name}}.zip"><i class="fa fa-download fa-lg fa-m"><span class="sr-only">{{.i18n.Tr "download"}}</span></i></a>
                     <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">
                         <span class="caret"></span>
+                        <span class="sr-only">{{.i18n.Tr "more"}}</span>
                     </button>
                     <div class="dropdown-menu clone-group-btn dropdown-menu-right no-propagation">
                         <div class="input-group">
@@ -20,7 +21,7 @@
                             </span>
                             <input type="text" class="form-control clone-group-url" value="" readonly id="repo-clone-ipt"/>
                             <span class="input-group-btn">
-                                <button class="btn btn-default" type="button" data-toggle="tooltip" title="copy to clipboard" data-placement="top" data-init="copy" data-copy-val="val" data-copy-from="#repo-clone-ipt"><i class="fa fa-copy"></i></button>
+                                <button class="btn btn-default" type="button" data-toggle="tooltip" title="copy to clipboard" data-placement="top" data-init="copy" data-copy-val="val" data-copy-from="#repo-clone-ipt"><i class="fa fa-copy"></i><span class="sr-only">copy to clipboard</span></button>
                             </span>
                         </div>
                         <p class="help-block text-center">Need help cloning? Visit <a target="_blank" href="https://help.github.com/articles/fork-a-repo">Help</a>!</p>
@@ -34,12 +35,13 @@
                 {{if .IsSigned}}
                 <div class="btn-group {{if .IsRepositoryWatching}}watching{{else}}no-watching{{end}}" id="repo-watching" data-watch="{{AppSubUrl}}/{{.Owner.Name}}/{{.Repository.Name}}/action/watch" data-unwatch="{{AppSubUrl}}/{{.Owner.Name}}/{{.Repository.Name}}/action/unwatch">
                     {{if .IsRepositoryWatching}}
-                    <button type="button" class="btn btn-default"><i class="fa fa-eye fa-lg fa-m"></i></button>
+                    <button type="button" class="btn btn-default"><i class="fa fa-eye fa-lg fa-m"></i><span class="sr-only">{{.i18n.Tr "unwatch"}}</span></button>
                     {{else}}
-                    <button type="button" class="btn btn-default"><i class="fa fa-eye-slash fa-lg fa-m"></i></button>
+                    <button type="button" class="btn btn-default"><i class="fa fa-eye-slash fa-lg fa-m"></i><span class="sr-only">{{.i18n.Tr "watch"}}</span></button>
                     {{end}}
                     <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">
                         <span class="caret"></span>
+                        <span class="sr-only">{{.i18n.Tr "more"}}</span>
                     </button>
                     <div class="dropdown-menu dropdown-menu-right">
                         <div class="dropdown-item text-left to-unwatch">
@@ -55,11 +57,11 @@
                 </div>
                 {{end}}
                 <!-- <div class="btn-group">
-                    <button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="top" title="Star"><i class="fa fa-star"></i>&nbsp;{{.Repository.NumStars}}</button>
+                    <button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="top" title="Star"><i class="fa fa-star"></i>&nbsp;{{.Repository.NumStars}}<span class="sr-only">&nbsp;{{.i18n.Tr "star"}}</span></button>
                 </div> -->
                 {{end}}
                 <!-- <div class="btn-group">
-                    <a type="button" {{if not .IsRepositoryOwner}}href="{{AppSubUrl}}/{{.Username}}/{{.Reponame}}/fork"{{end}} class="btn btn-default" data-toggle="tooltip" data-placement="top" title="Fork"><i class="fa fa-code-fork fa-lg"></i>&nbsp;{{.Repository.NumForks}}</a>
+                    <a type="button" {{if not .IsRepositoryOwner}}href="{{AppSubUrl}}/{{.Username}}/{{.Reponame}}/fork"{{end}} class="btn btn-default" data-toggle="tooltip" data-placement="top" title="Fork"><i class="fa fa-code-fork fa-lg"></i>&nbsp;{{.Repository.NumForks}}<span class="sr-only">&nbsp;Fork</span></a>
                 </div> -->
             </div>
         </div>