Why I've got these white borders with chrome with some resolutions and how to remove them?

Hope this will help.

var myApp = angular.module('myApp', []);myApp.controller('mainCtrl', ['$scope', '$timeout',function($scope, $timeout) {    $scope.bgImage = 'url(http://www.larousse.fr/encyclopedie/data/images/1310226-Vincent_Van_Gogh_la_Nuit_%C3%A9toil%C3%A9e.jpg)';    var section = 12;    $scope.getNumber = function() {        return new Array(section);    }    $scope.getRotation = function(i) {        var hasMatrix = false, deg = 0, base = 360 / section, rotation;        if (i % 2 === 0) {            i -= 1;            hasMatrix = true;        }        deg = Math.round(i * base + 1);        if (section <= 4) {            deg -= 1;        }        rotation = 'rotate(' + deg + 'deg)';        if (hasMatrix) {            // Please updated this line            rotation += ' matrix(-1, 0, 0, 1, -1, 0)';        }        return rotation;    }    $scope.mode = 'move';    $scope.onMousemove = function(e) {    console.log($scope.mode);    if ($scope.mode === 'move') {        $scope.bgPosition = e.pageX + 'px ' + e.pageY + 'px';    }    };}]);