body,
html {

    overflow: hidden;
}

.main {
    /* height: 98%;
    width: 98%;
    display: grid; */
    grid-template-rows: auto auto auto;
    /* border: solid 1px #000000; */
}

.white {
    background-color: #ffffff;
}

.blue {
    background-color: #0036A7;
}

.red {
    background-color: #D62718;
}

.one-div {
    position: absolute;
    top: 0;
    bottom: 0;
    right: 0;
    left: 0;
    overflow: hidden;
    background: linear-gradient(to bottom,
            #ffffff 33.3%,
            #0036A7 33.3% 66.6%,
            #D62718 66.6%);
    border: solid 5px #000000;
}