.main_buttons {
	display: none;
}

/* fixing */

@media (max-width: 790px) { 
    
    .main_buttons {
        z-index: 99999;
        display: block;
        position: fixed;
        left: 0;
        bottom: 0;
        width: 100%;
        height: 60px;
        text-align: center;
        display: table;
    }
    
    .main_buttons .on {	
        padding: 8px 0 4px 0;
        display: table-cell;
    }
    
    .main_buttons .on a {
    	font-size: 13px;
        text-decoration: none;
    }
    
    .main_buttons .on i {
    	font-size: 18px;
    	display: block;
    	margin-bottom: 2px;
    }
    
    .main_buttons .one-third { 
    	 width: 32%;
    }
       
    .main_buttons .one-half { 
    	 width: 48%;
    }       
}