@import url('https://fonts.googleapis.com/css?family=PT+Serif');

body, html {
    width: 100%;
    height: 100%;
    padding: 0;
    margin: 0;
}

body {
    font-family: 'PT Serif', serif;
}

.main-container {
    width: 100%;
    max-width: 1300px;
    height: 100%;
    margin: auto;
    display: -webkit-box; 
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex; 
    display: flex;
}

.inner-container {
    min-height: 300px;
    margin: auto;
    padding: 20px 0;
    display: -webkit-box; 
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex; 
    display: flex;
}

.left-side, .right-side {
    width: 50%;
}

.left-side {
    max-width: 513px;
}

.left-side img {
    width: 100%;
}

.right-side {
    max-width: 520px;
    margin-left: 50px;
    position: relative;
    margin-top: -1vh;
}

.right-side img {
    width: 100%;
    max-width: 430px;
}

.right-side p {
    font-size: 1.1em;
    line-height: 1.35em;
}

.signature {
    position: absolute;
    bottom: 30px;
    right: 0;
}

.download {
    font-weight: 600;
    color: #000;
    text-align: center;
    padding: 6px 10px;
    border: 1px solid #000;
    font-size: 1.1em;
    display: inline-block;
}

.download-specs {
    color: #808080;
    font-size: 0.73em;
    margin-top: 5px;
}

h1 {
    position: absolute;
    opacity: 0;
}

.author {
    position: absolute;
    font-size: 1.25em;
    top: 6%;
    opacity: 0;
    right: 15%;
}

@media (max-width: 1030px) {
    
    .inner-container {
        flex-wrap: wrap;
        -webkit-flex-wrap: wrap;
        -ms-flex-wrap: wrap;
        -moz-flex-wrap: wrap;
        margin-top: 15px;
        padding: 0 15px;
    }
    
    .left-side, .right-side {
        width: 100%;
        margin: auto;
    }
    
    .left-side img {
        margin: auto;
        display: block;
    }
    
    .right-side {
        margin: 10px auto 30px;
    }
    
    .signature {
        bottom: 45px;
    }
    
    .download {
        margin-top: 25px;
    }
}

@media (max-width: 550px) {
    
    p {
        font-size: 1em;
        text-align: left;
        margin-bottom: 10px;
    }
    .left-side img {
        width: 80%;
    }
    .right-side p {
        font-size: 1em;
        line-height: 1.45em;
    }
    .download {
        font-size: 1em;
    }
    .signature {
        position: relative;
        bottom: 0;
    }
    .signature img {
        width: 100px;
        display:block;
        margin-left: auto;
    }
    .author {
        font-size: 3.5vw;
        top: 5.5vw;
    }
    
}