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 li::after {
    clear: both;
    display: block;
    content: "";

}