.v-center {
    min-height: 200px;
    display: flex;
    justify-content: center;
    flex-flow: column wrap;
}

.ngduallist .left-container .left-sub-container {
    height: 300px;
    overflow-y: auto;
    border-radius: 1px solid #e5e5e5;
}

.ngduallist .right-container .right-sub-container {
    height: 300px;
    overflow-y: auto;
    border-radius: 1px solid #e5e5e5;
}

.ngduallist .input-group {
    margin-bottom: 20px;
    width: 100%;
}

.ngduallist .input-group .input-group-addon {
    width: 10px;
}

.margin-but{
	
	margin-top: 20%;
}