.grid img { 
    width: 150px;
    width: 90%;
}

.grid { 
    padding: 0;
}

.grid li { 
    display: block;
    width: 25%;
    text-align: center;
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.using-floats li { 
    float:left;
}

.using-floats::after { 
    content: "";
    display: block;
    clear: both;
}

.using-inline-block li { 
    display: inline-block;
}

.using-inline-block { 
    font-size: 0;
}

.using-flex { 
    display: flex;
    flex-wrap: wrap;
}

.using-grid { 
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
}

.using-grid li { 
    width: 100%;
}