@media screen and (-webkit-min-device-pixel-ratio:0) {
    button#searchbtn {
        margin-left: 185px;
        margin-top: -36px !important;
        height: 34px !important;
    }
}

@-moz-document url-prefix() {
    button#searchbtn {
        margin-left: 178px !important;
        margin-top: -36px !important;
        height: 35px !important;
    }
}