platform-bi-web/app/components/chartDesigner/sections/baseConfigForm.less

.baseconfig-viewtype {
    width: 260px;
    .ant-select-dropdown-menu {
        display: flex;
        flex-wrap: wrap;
        .ant-select-dropdown-menu-item {
            width: 50%;
            .viewtype-box {
                text-align: center;
                .viewtype-icon {
                    width: 20px;
                    height: 20px;
                    background-image: url(../../../assets/chart-bar.png);
                    background-size: contain;
                    margin: 0 auto;
                }
            }
        }
    }
}