/* normalize */
    * {
        padding: 0;
        margin: 0;
        box-sizing: border-box;
        line-height: 100%;
    }
    
    html {
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    }
    
    ul,
    li {
        list-style: none;
    }
    
    a {
        color: inherit;
        text-decoration: none;
    }
    /* normalize */