* {
    margin: 0%;
    padding: 0%;
}
#check{
    display: none;
}




@media screen and (max-width: 35em) {
    /* .navigation_items ul{
        display: block; 
    } */
    .navbar_lists{
        width: 100%;
        height: 100vh;
    }
    
    

    .left,
    .right {
        display: none;
        position: fixed;
        height: 100%;
        width: 50px;

    }

    #menu_btn {
        display: block;
    }
    

    .logo img {
        height: 2.5rem;
        width: 2.5rem;
        margin: 1rem 1rem 1rem 1rem;
    }

    #notification_btn {
        margin: 1rem;
    }

    #header_start {
        font-size: 15px;
    }

    .header h2 {
        font-size: 40px;
    }

    #header_end {
        font-size: 15px;
    }

    .left,
    .right {
        /* display: none; */
        width: 50px;
    }

    #copyright {
        font-size: 8px;
    }
    .center{
        /* margin: 2rem 2rem 2rem 5rem; */
        margin-top: 5rem;
    }



}





@media screen and (max-width: 62em) {

    .navigation_items ul li{
        margin: 3rem 1rem 1rem 1rem;
    }
    .navigation_items ul li a {
      
        color: black;
        
    }
    #cancel_btn{
        margin-top: 5rem;
    }

    .navigation_items ul  {
        width: 100%;
        height: 100vh;
        display: flex;
        flex-wrap: wrap;
        flex-direction: column;
       
        background-color: #e7f5ff;
        align-items: center;
        position: fixed;
        top: 0px;
        left: -100%; 
        transition: all 0.3s ease; 
        z-index: 1;
       
    }
    #cancel_btn{
        display: block;
        /* width: 100%; */
    }
    /* .navbar_lists #cancel_btn{
    margin: 4rem 0rem 0rem 30rem;
    } */
    #check{
        display: none;
    }
    
    
    

    #menu_btn {
        display: block;
    }

    .center {
        padding: 4rem 0rem 0rem 0rem;

    }

    .left,
    .right {
        /* display: none; */
        position: fixed;
        height: 100%;
        width: 70px; 
    }
    .center {
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    margin: 80px 10px;
    padding: 20px;
    background-color: var(--body_background_color);
    }
    #header_end{
        font-size: 10px;
    }
    #copyright{
        font-size: 9px;
        display: block;
    }

}