Ng-walkthrough backdrop issue


#1

hello, i am new to ionic
i am using ng-walkthrough for my ionic project tour
it works like a charm for my iphone 5c
but for iphone 6plus ios 11, backdrop is not appearing
please help for solving my issue.

i have tried below css:

.walkthrough-hole {
position: absolute;
-moz-box-shadow: 0 0 3px 1997px rgba(0, 0, 0, .8);
-webkit-box-shadow: 0 0 3px 1997px rgba(0, 0, 0, .8);
box-shadow: 0 0 3px 1997px rgba(0, 0, 0, .8);
border-radius:1px
-webkit-appearance: none;

}

but it does not works for me.
please help…