.ppe {
        &-wapper {
            height: 90%;
            min-height: 90%;
            display: flex;
            flex-direction: column;

            .row {
                display: flex;
		flex-direction: column;
                justify-content: center;
            }
        }

        &-header{
            background: blue;
            min-height: 100px;

        }

        &-body {
            background: yellow;
            overflow-y: auto;
            flex: 1;
        }

        &-footer {
            background: black;
            min-height: 10px;
        }
    }