.main {
    width: 100%;
    position: relative;
}

.main-container {
    width: 375px;
    margin: auto;
    margin-top: 100px;
}

a.main-container-download-link {
    width: 100%;
    display: block;
    position: relative;
    margin-bottom: 50px;
}

a.main-container-download-link img {
    width: 250px;
    margin: auto;
    display: block;
}