@media (min-width: 1281px) and (max-width: 1300px) {
    .slideer {margin-right: 0px}
}

@media (min-width: 1025px) and (max-width: 1280px) {
    .slideer {margin-right: 0px}
}

@media (min-width: 900px) and (max-width: 1000px) {
    .slideer {margin-right: 0px}
}

@media (min-width: 992px) {
    .slideer {margin-right: 0px}
}

@media (min-width: 800px) and (max-width: 990px) {
    .slideer {margin-right: -400px}
    #left-slide {width: 100%}
}

@media (min-width: 768px) and (max-width: 800px) {
    .slideer {margin-right: -400px}
    #left-slide {width: 100%}
}

@media (min-width: 700px) and (max-width: 768px) {
    .slideer {margin-right: -400px}
    #left-slide {width: 100%}
}

@media (min-width: 600px) and (max-width: 700px) {
    .slideer {margin-right: -400px}
    #left-slide {width: 100%}
}

@media (min-width: 500px) and (max-width: 600px) {
    .slideer {margin-right: -400px}
    #left-slide {width: 100%}
}

@media (min-width: 400px) and (max-width: 500px) {
    .slideer {margin-right: -400px}
    #left-slide {width: 100%}
}

@media (min-width: 380px) and (max-width: 420px) {
    .slideer {margin-right: -400px}
    #left-slide {width: 100%}
}

@media (min-width: 340px) and (max-width: 380px) {
    .slideer {margin-right: -400px}
    #left-slide {width: 100%}
}

@media (min-width: 300px) and (max-width: 340px) {
    .slideer {margin-right: -400px}
    #left-slide {width: 100%}
}