CSS Grid Auto Fill Example

grid.css

.grid_wrap {
    width: 100%;
    max-width: 100%;
    display: grid;
    margin: 0 auto;
    grid-template-columns: repeat(auto-fill, minmax(25%, 1fr));
    grid-auto-rows: 1fr;
    grid-auto-flow: row dense;
    grid-gap: 10px;
    counter-reset: boxes;
}