.two-column { 
    @include adjustBothEnds;
    
    &--area {
        @extend .two-column;
        margin: 100px 0 0 0;
    }
    &__side {
        width: 304px;
        @include sp{
            display: none;
        }
    }
    &__main {
        width: 756px;
        @include sp {
            width: 100%;
        }
    }
}