.grid {
    width: 450px;
    height: 450px;
    background-color: ghostwhite;
    border-style: solid;margin-right: 5px;border-width: 1px
}

.row {
    width: 907px;
    height: 250px;
    background-color: ghostwhite;
    border-style: solid;margin-right: 5px;border-width: 1px
}

.one-one {
    display: inline-block;
    float: left;
    width: 225px;
    height: 225px;
}

.one-two {
    display: inline-block;
    float: left;
    width: 225px;
    height: 225px;
}

.two-one {
    display: inline-block;
    float: left;
    margin-top: 5px;
    width: 225px;
    height: 225px;
}

.two-two {
    display: inline-block;
    float: left;
    margin-top: 5px;
    width: 225px;
    height: 225px;
}