* {
    box-sizing: border-box;
}

html {
    padding: 0 10%;
    /* background-image: url("https://images.unsplash.com/photo-1506318137071-a8e063b4bec0?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1493&q=80") */
    background-color: #0c0d07;
    background-image: url(../img/content/milky-way.jpeg);
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

body {
    /*center hack*/
    /* used when page still has no navigation
    width: 90%;
    padding: 0 1rem;
    margin: auto;
    */
    margin: 0;
    padding: 0 1rem;
    
    /* background-color: #0c0600; */
    background-color: #0c0d07;
    background: linear-gradient(to left, #254359, #0c0d07);
    color: #fff;
    font-family: roboto, sans-serif;
}

nav, div {
    display: inline-block;
    vertical-align: top;
}

nav {
    width: 20%;
    padding: 0 10px;
    position: sticky;
    top: 0;
}

nav > ul li,
nav > aside > ul li {
    margin-top: 10px;
    margin-bottom: 10px;
}

nav > ul a {
    color: #FFFF00;
}

nav > aside a,
nav > span a,
body > div > p > a {
    color: aqua;
}

a:hover {
    text-decoration-style: wavy;
}

div {
    width: 79%;
    padding: 0 10px;
    border-left: 1px solid #c0c0c0;
}

span.top {
    display: block;
    font-size: 2em;
    margin-block-start: 0.67em;
    margin-block-end: 0.67em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
}

h1,
span.top {
    color: #e31c2e;
}

h2 > a{
    color: #FFFF00;
}

h3 {
    color: #00FF41;
}

code, pre {
    white-space: pre-wrap;
    background-color: #101010;
}

code {
    font-size: 1rem;
    color: #c0c0c0;
}

div > button {
    color: #fff;
    font-weight: bold;
    /* -webkit-text-stroke: 0.10mm black; */
    margin-bottom: 15px;
    border: 2px solid #c0c0c0;
    padding: 7px;
    border-radius: 10px;
    background: linear-gradient(to left, #0c0d07, #254359);
}

dialog button:hover {
    cursor: pointer;
}

div > button:hover {
    border: 2px solid aqua;
    cursor: pointer;
    background: linear-gradient(to right, #0c0d07, #254359);
}

dialog:modal {
    background-color: teal;
}

dialog::backdrop {
    background: rgba(192, 192, 192, .75);
  }

dialog > pre {
    width: 50vw;
    padding: 0 10px;
}

dialog#functionTask4Dialog pre,
dialog#arrayMethodsTask1Dialog pre {
    width: 70vw;
}

@media screen and (max-width: 885px) {
    html {
        padding: 0;
    }
}

@media screen and (max-width: 910px) {
    nav {
        display: none;
    }

    div {
        width: 100%;
        border-left: 1px solid transparent;
    }
}