hover на два блока

.imgBottom{ 
	width: 141px; 
	height: 130px; 
	margin-top: 20px; 
	margin-left: 22px; 
	float: left; 
	color:#2987ac; 
	font-size: 12.3px; 
  background-color:gray; 
	 
} 
.imgBottom a{ 
	top:10px; 
	position: relative; 
	color:black; 
	font-size: 12.3px; 
 
} 
 
.imgBottom:first-child{ 
	margin-left: 19px; 
} 
.imgBottom #arr ,#arr1,#arr2,#arr3,#arr4,#arr5,#arr6{ 
	position:relative; 
	top:12px; 
	left:6px; 
		-webkit-transition: all 0.3s; 
	-o-transition: all 0.3s; 
	transition: all 0.3s; 
	color:#fff; 
	 
	 
} 
.imgBottom :hover { 
	-webkit-transition: all 0.3s; 
	-o-transition: all 0.3s; 
	transition: all 0.3s; 
	color:#2987ac; 
	 
} 
 
.imgBottom #arr3 
	background:url(http://iconspot.ru/image.php?width=128&height=128&crop=none&id=13940); 
} 
.imgBottom:hover a { 
	color:#2987ac; 
} 
.imgBottom:hover #arr3 { 
	background:url(http://s1.iconbird.com/ico/0612/GooglePlusInterfaceIcons/w128h1281338911640arrowright2.png); 
	cursor:pointer; 
}

<div class="imgBottom"><img src="https://static-s.aa-cdn.net/img/ios/990114226/e92aea60b7b085c70a9d17ed59b38eea?v=1" > 
<a href="#">Строительство и логистика</a> 
<img src="" id="arr3"/> 
</div>