body {
    background: #fff
}

header {
    text-align: center
}

header img {
    max-width: 100%;
    max-height: 100px;
    padding: 25px 0
}

a {
    color: #fff
}

section.image-section {
    min-height: 100vh;
    background: #fff no-repeat 50%;
    background-size: cover;
    padding-top: 100px
}

section.image-section.section-one {
    background-image: url(./01.0d6d8f67.jpg)
}

section.image-section.section-two {
    background-image: url(./02.ca2a9a2b.jpg)
}

section.image-section.section-three {
    background-image: url(./03.9c978f4b.jpg)
}

section.image-section .block-row {
    display: flex;
    flex-direction: column;
    max-width: 90%;
    margin: 0 auto
}

section.image-section .text-block {
    max-width: 675px;
    color: #fff;
    background-color: rgba(0, 0, 0, .7);
    padding: 35px 30px;
    margin: 10px 0;
    font-size: 1.1em;
    font-family: sans-serif
}

section.image-section .text-block.right {
    align-self: flex-end
}

section.image-section .text-block.left {
    align-self: flex-start
}