replace tooltips with placeholder when information is needed

index.html

@@ -43,45 +43,35 @@
 			<div class="form-group-header">
 				<label for="username">Username</label>
 			</div>
-			<div aria-label="Enter your username here. (leave empty for anonymous login)" class="form-group-body tooltipped tooltipped-n">
-				<input class="form-control input-block" id="username" type="text"/>
-			</div>
+			<input class="form-control input-block" id="username" type="text" placeholder="Leave empty for anonymous login"/>
 		</div>
 
 		<div class="form-group mx-3 mt-1">
 			<div class="form-group-header">
 				<label for="password">Password</label>
 			</div>
-			<div aria-label="Enter your password here. (leave empty for anonymous login)" class="form-group-body tooltipped tooltipped-n">
-				<input class="form-control input-block" id="password" type="password"/>
-			</div>
+			<input class="form-control input-block" id="password" type="password" placeholder="Leave empty for anonymous login"/>
 		</div>
 
 		<div class="form-group mx-3 mt-1">
 			<div class="form-group-header">
 				<label for="appid">App ID</label>
 			</div>
-			<div aria-label="Enter the App ID here." class="form-group-body tooltipped tooltipped-n">
-				<input class="form-control input-block" id="appid" type="number"/>
-			</div>
+			<input class="form-control input-block" id="appid" type="number"/>
 		</div>
 
 		<div class="form-group mx-3 mt-1">
 			<div class="form-group-header">
 				<label for="depotid">Depot ID</label>
 			</div>
-			<div aria-label="Enter the Depot ID here." class="form-group-body tooltipped tooltipped-n">
-				<input class="form-control input-block" id="depotid" type="number"/>
-			</div>
+			<input class="form-control input-block" id="depotid" type="number"/>
 		</div>
 
 		<div class="form-group mx-3 mt-1">
 			<div class="form-group-header">
 				<label for="manifestid">Manifest ID</label>
 			</div>
-			<div aria-label="Enter the Manifest ID here." class="form-group-body tooltipped tooltipped-n">
-				<input class="form-control input-block" id="manifestid" type="number"/>
-			</div>
+			<input class="form-control input-block" id="manifestid" type="number"/>
 		</div>
 
 		<div class="form-group mx-3 mt-1">
@@ -106,7 +96,7 @@
 		</div>
 	</form>
 
-	<div aria-label="Start the download process." class="form-group mt-3 ml-3 mr-3 tooltipped tooltipped-n">
+	<div class="form-group mt-3 ml-3 mr-3">
 		<button class="btn btn-block btn-primary" id="downloadbtn">
 			<svg class="octicon" height="16" viewBox="0 0 16 16" width="16" xmlns="http://www.w3.org/2000/svg">
 				<path d="M7.47 10.78a.75.75 0 001.06 0l3.75-3.75a.75.75 0 00-1.06-1.06L8.75 8.44V1.75a.75.75 0 00-1.5 0v6.69L4.78 5.97a.75.75 0 00-1.06 1.06l3.75 3.75zM3.75 13a.75.75 0 000 1.5h8.5a.75.75 0 000-1.5h-8.5z"