Responsive mixin

@mixin w1580 {
    @media only screen and (max-width: 1580px) {
        @content;
    }
}

@mixin w1480 {
    @media only screen and (max-width: 1480px) {
        @content;
    }
}

@mixin w1380 {
    @media only screen and (max-width: 1380px) {
        @content;
    }
}

@mixin w1280 {
    @media only screen and (max-width: 1280px) {
        @content;
    }
}

@mixin w1200 {
    @media only screen and (max-width: 1200px) {
        @content;
    }
}

@mixin w1120 {
    @media only screen and (max-width: 1120px) {
        @content;
    }
}

@mixin w1080 {
    @media only screen and (max-width: 1080px) {
        @content;
    }
}

@mixin w1024 {
    @media only screen and (max-width: 1024px) {
        @content;
    }
}

@mixin h820 {
    @media only screen and (max-height: 820px) and (min-width: 1000px) {
        @content;
    }
}

@mixin min1000 {
    @media only screen and (min-width: 1000px) {
        @content;
    }
}

@mixin w1000 {
    @media only screen and (max-width: 1000px) {
        @content;
    }
}

@mixin w960 {
    @media only screen and (max-width: 960px) {
        @content;
    }
}

@mixin w860 {
    @media only screen and (max-width: 860px) {
        @content;
    }
}

@mixin w768 {
    @media only screen and (max-width: 768px) {
        @content;
    }
}

@mixin w740 {
    @media only screen and (max-width: 740px) {
        @content;
    }
}


@mixin w640 {
    @media only screen and (max-width: 640px) {
        @content;
    }
}

@mixin w480 {
    @media only screen and (max-width: 480px) {
        @content;
    }
}

@mixin w375 {
    @media only screen and (max-width: 375px) {
        @content;
    }
}

@mixin w320 {
    @media only screen and (max-width: 320px) {
        @content;
    }
}