@media (max-width: 1113px) {
    .nav {
        position: fixed;
        z-index: 0;
        top: 0;
        right: 0;
        left: 0;
        bottom:0;
        margin-top: 70px;
        
        //display: none;
    }
    
    .close {
    display: none;
    }
    
    .header .icon {
    display: block;
    width: 43px;
    cursor: pointer;
    }
}

@media (max-width: 800px) {
    .content {
        padding: 20px;
    }
    
    .high_text {
        font-size: 30px;
    }
    .norm_text {
        font-size: 22px;
    }
}