.wd_container {
    width: 1200px;
    margin: 0 auto;
    display: table;
    padding: 0;
}
.wd_slide {
    width: 1200px;
margin: 21px auto 0 auto !important;
display: table;
padding: 0 11%;
}

@media (min-width:320px) and (max-width:479px){
.wd_slide {
    margin: 15px auto 10px !important;
    display: table;
    padding: 0 15px;
    width: 320px !important;
float: none;
}
.wd_container {
    width: 100%;
    padding: 0 15px;
    float: left;
}

}

@media (min-width:480px) and (max-width:767px) {
.wd_slide {
    width: 480px;
    margin: 18px auto 10px auto !important;
    display: table;
    padding: 0;
    float: none;
}
.wd_container {
    width: 100% !important;
    padding: 0 3.5%;
    float: left;
}

}

@media (min-width:768px) and (max-width:1023px) {
.wd_slide {
    margin: 18px auto 0 !important;
display: table;
padding: 0 25px;
width: 768px;
float: none;
}
.wd_container {
    width: 100%;
    padding: 0 3.5%;
    float: left;
}

}

@media (min-width:1024px) and (max-width:1240px) {
.wd_slide {
    width: 100%;
    margin: 15px auto;
    display: table;
    padding: 0 8%;
}
.wd_container {
    width: 100%;
    padding: 0 3.5%;
    float: left;
}

}