body {
  font-family: 'Aoto Gothic DemiBold';
}

@media (min-width : 641px){ 
    .content_wrap::before {
        content: "";
        display: block;
        width: 100%;
        height: calc(100% - (100vw * 968 / 1801));
        background: #b4ffe8;
        position: absolute;
        z-index: -1;
        left: 0;
    } 
}