.wrap {
width: 100%; max-width: calc(700px + 3.6rem); margin: 0 auto; padding: 0 1.8rem; // background-image: linear-gradient(rgba(50, 50, 50, .1) 1px, transparent 1px); // background-size: 100% 32px;
}
@media screen and (min-width: 1440px) {
.wrap { max-width: calc(800px + 3.6rem); // background-size: 100% 40px; }
}