body {
    display: block;
    /*background-color: rgb(255, 255, 255);
    margin: 0px;*/
    width: 100%;
    height: 100vh;
    margin: 0;
    background-image: url(img/main.jpg);
    background-size: cover;
    background-position: center;
    background-repeat: repeat;
    transition: background-position 0.1s;
    font-family: monospace;
    color: #ffffff;
}

table {
    border-collapse: collapse;
    border-spacing: 0px;
}

td {
    /*border: 1px solid rgb(255, 255, 255);*/
    padding-top: 0px;
    padding-bottom: 0px;
    padding-right: 0px;
    padding-left: 0px;
}

.CD01 {
    /*background-color: rgb(255, 255, 255);*/
    margin: 0px;
}

.C01 {
    background-color: #e74c3c;
    width: 90%;
    height: 90%;
}

.C02 {
    background-color: #e74c3c;
    width: 200px;
    height: 200px;
}