:root {
    --c1: #f6546a;
    --c2: #40e0d0;
    --c3: #3399ff;
    --c4: #fef65b;
}
body {
    background-color: black;
    font-family: Arial;
}
#container {
    width: 1208px;
    /*max-width: 1208px;*/
    /*min-width: 960px;*/
    margin: auto;
    border: 1px solid DodgerBlue;
}
#header {
    color: white;
    padding-left: 20px;
    border: 2px solid transparent;
    border-bottom: 4px solid white;
}
.row {
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    align-items: center;
    border-bottom: 1px dotted white;
    /*flex-wrap: wrap;*/
}
.unit-block {
    width: 200px;
    height: 300px;
    margin: 20px;
}
.content {
    width: 200px;
    height: 200px;
    border-radius: 10px 10px 0 0;
    /*background-color: #ff6600;*/
    background: linear-gradient(to top left, #cc95c0, #dbd4b4, #7aa1d2);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}
.introduction {
    width: 200px;
    height:100px;
    background-color: peachpuff;
    border-radius: 0 0 8px 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 18px;
    font-weight: bold;
    color: darkslategray;
}