* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html, body {
    height: 100%;
    background-color: #EEE;
}
body {
    font-family: Arial, Helvetica, sans-serif;
}
.wrapper {
    display: flex;
    height: 100%;
    flex-direction: row;
    align-items: center;
    justify-content: center;
}
.logo {
    width: 200px;
    max-width: 90%;
}
.logo img {
    display: block;
    width: 100%;
}
.slogan {
    border-left: 1px solid #CCC;
    margin: 0 0 0 30px;
    padding: 30px 0 30px 30px;
    color: #999;
    text-shadow: -1px -1px rgba(0, 0, 0, 0.6);
}

.slogan .line1,
.slogan .line2 {
    display: block;
}
.slogan .line1 {
    font-size: 24px;
}
.slogan .line2 {
    font-size: 47px;
}

@media (max-width: 700px) {
    .wrapper {
        flex-direction: column;
    }
    .slogan {
        border-left: unset;
        border-top: 1px solid #CCC;
        margin: 20px;
        padding: 20px;
        text-align: center;
    }
    .slogan .line1 {
        font-size: 16px;
    }
    .slogan .line2 {
        font-size: 32px;
    }
}