* {
    font-family: Comic Sans MS, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    padding: 10px;
}

ol{
    list-style-type: none;
}
nav  > ol >  li{
    display: inline-block;
    margin-bottom: 0.5em;
} 

nav  ol  li  p, nav  ol  li  a{
    display: block;
    color: #FFF;
    text-decoration: underline;   
    cursor: pointer;
    background-color: rgb(95, 158, 160);
    padding: 1em 2em;
}

.submenu-visibility{
    visibility: hidden;
}
.submenu-visibility p{
    visibility: visible;
}
.submenu-visibility ol{
    position: absolute;
    padding-top: 0.5em;
    margin-left: 25px;
}
.submenu-visibility ol li a{
    display: inline-block;
    margin-bottom: 0.5em;
}
.submenu-visibility:hover{
    visibility: visible;
}