html, body {
    height: 100%;
}

body {
    background: linear-gradient(to bottom, #a7cfdf 0%,#23538a 100%);
    background-size: cover;
}

div.upperAd {
    width:100%;
    height: 30px;
    border: 2px solid blue;
    color: blue;
    padding: 10px;
}

.wrap > div {
    box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    border-radius: 5px;
    padding: 15px;
    background-color: white;
    width: 30%;
    margin: 1%;
}

div.wrap {
    display: flex;
    justify-content: space-around;
}