.chk-dd-mobile{
    display:none;
}
.dd-fixed-wrapper {
   position: absolute;
   top: 0;
   left: 0 !important;
   margin-top: -55px;
   width: 100% !important;
   visibility: hidden;
   opacity: 0;
   transition: 0s;
   z-index: 200;
}
.dd-fixed-wrapper #dd-fixed{
    width:calc(100% - 80px);
    left:0;
    top:0;
    background-color:#e7e7e7;
    visibility:hidden;
    opacity:0;
    z-index:2;
    transition:0s;
}
@media screen and (max-device-width: 480px) {
    .chk-dd-mobile{
        display:block;
    }
    .right-col .ph-title-col2 .ph-dropdown-pos { margin-right:0px; }
    #dd {
        background-color:#e7e7e7;
    }
    .dd-fixed-wrapper.scoll-fixed {
        margin-top:0px;
        position:fixed;
        visibility: visible;
        opacity: 1;
        transition: 0s;
    }
    .dd-fixed-wrapper.scoll-fixed #dd-fixed {
        visibility: visible;
        opacity: 1;
        transition: 0s;
    }
}