/* CSS RESETS */
/* ----------------------------------------------------- */

*   {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

html    {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
}

body    {
    margin: 0;
    padding: 0;
    width: 100%;
}

img {
    display: block; 
    margin: 0 auto;
    max-width: 100%;
}




/* ACTUAL STYLING */
/* ----------------------------------------------------- */


button {
    margin: 20px;
    margin-right: 0;
    padding: 5px 10px;
    border: 1px solid dimgray;
    border-radius: 20px;
    background-color: white;
    cursor: pointer;
}

#menu1 {
    background-color: yellow;
    position: fixed;
    top: 0;
    right: 0;
    width: 50vw;
    height: 50vh;
}

#menu2 {
    background-color: yellowgreen;
    position: fixed;
    bottom: 0;    
    width: 100vw;
    height: 10vh;
    
}

/* important! tag is added to #id selector can be trumped by the .classname selector below */
.closed {
    display: none !important;
}
.opened {
    display: block !important;
}