body {
    background-color: #80daeb;
}

h1 {
    text-align: center;
}

h3 {
    color: green;
}

.content {
    border: 1px solid black;
    background: rgb(255, 255, 255);
    background: rgba(255, 255, 255, 0.6);
    position: relative;
    margin: 0 auto;
    height: 100px;
    width: 100px;
    font-size: 24px;
    text-align: center;
}