.zai-row {
    display: flex;
    flex-wrap: wrap;
    position: relative;
    box-sizing: border-box;
    margin: var(--zai-row-margin, 0);
    justify-content: var(--zai-row-justify, start);
    align-items: var(--zai-row-align, start);
}
.zai-col {
    position: relative;
    box-sizing: border-box;
    padding: var(--zai-row-padding, 0);
    max-width: var(--zai-col-width, 100%);
    flex: var(--zai-col-flex, 0 0 100%)
}