body {
    margin: 0;
    font-family: 'Arial', sans-serif;
}

.header {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

.hero {
    position: relative;
    height: 100%;
    width: 100%;
    overflow: hidden;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
}

.portrait {
    border: #ffffff 2px solid;
    display: inline-block;
    border-radius: 50%;
    width: 200px;
}

.background {
    min-width: 100%;
    min-height: 100%;
}