CODE EXAMPLE FOR CSS

how to make grid css

.full-area {
    width: 100%;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    box-sizing: border-box;
}

.box-1 {
    width: 25%;
}

.box-2 {
    width: 25%;
}

.box-3 {
    width: 25%;
}

.box-4 {
    width: 25%;
}