nav:not(.mm-menu) {
 display: none;
}
.header, .footer { background: #301224; font-size: 16px; font-weight: bold; color: #fff; line-height: 40px; -moz-box-sizing: border-box; box-sizing: border-box; width: 100%; height: 40px; padding: 0 50px; }
.header.fixed { position: fixed; top: 0; left: 0; }
.header a { background: center center no-repeat transparent; background-image: url( data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABkAAAAZCAYAAADE6YVjAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAADhJREFUeNpi/P//PwOtARMDHQBdLGFBYtMq3BiHT3DRPU4YR4NrNAmPJuHRJDyahEeT8Ii3BCDAAF0WBj5Er5idAAAAAElFTkSuQmCC ); display: block; width: 40px; height: 40px; position: absolute; top: 0; left: 10px; }