*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

header
{
    height: 100vh;
}
header .container
{
    background-color: #bdd6e5;
    height: 100%;
    width: 100%;
    position: relative;
}
header .container .box
{
    width: 280px;
    background: white;
    padding: 10px;
    position: absolute;
    left: 50%;
    top: 50%;
    translate: -50% -50%;
    border-radius: 10px;
    text-align: center;
}
header .container .box img
{
    width: 100%;
    border-radius: 5px;
}

header .container .box .content h1
{
    font-size: 20px;
    color: #0c0c37;
    margin: 10px 0;
}
header .container .box .content p
{
    color: #777;
    margin-bottom:25px;
}