*{
    margin: 0;
    padding: 0;
    font-family: 'Trebuchet MS', sans-serif;
    box-sizing: border-box;
}
body{
    background: #0f1c24;
    color: #fff;
    max-width: 70em;
    min-height: 100%;
    margin-left: auto;
    margin-right: auto;
    display: flex;
    flex-direction: column;
}

a{
    text-decoration: none;
    color: #bac7cf;
}

p {
    display: block;
    margin-block-start: 1em;
    margin-block-end: 1em;

}
.header {
    padding: 0 1em;
    display: inline;
}

.header h1 {
    padding-left: 1em;
    padding-right: 1em;
    display: inline;
}


.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    float: left;

}
.nav ul a {
    display: block;
    padding: 0.4em 0.6em 0.2em;
}
.nav ul a:hover{
    background-color: #bac7cf;
    color: #0f1c24;
    border-top-left-radius: 0.5em;
    border-top-right-radius: 0.5em;
}
.nav ul li a:visited{
    color: #4084ad;
}




.item-and-img {
    color: #0f1c24;
    max-width: max-content;
    padding-right: 0.6em;
    display: flex;
    flex-direction: row;
    align-items: center;
}

.item-and-img span {
    padding: 0.5em 0.5em;
}

.item-and-img img {
    width: 27px;
    height: 27px;
}

ul {
    list-style-type: none;
}

.header h1 {
    
    font-size: 25px;
}

.header h1 a:hover {
    color: #e0e9ee;
    transition: color 200ms linear;
}
.nav li {
    display: inline-block;
}

body > hr {
    display: block;
    border-top: 0.5em solid #bac7cf;
}


body > div.main-frame {
    flex-grow: 1;
    flex-shrink: 1;
    display: flex;
    flex-direction: row;
}

body > div.main-frame > div.main-body {
    min-width: 20em;
    flex-grow: 1;
    flex-shrink: 1;
    padding: 0em 1.5em 1em;
    background-color: #FFFFFF;
    border-bottom-left-radius: 0.5em;
    border-bottom-right-radius: 0.5em;
    color: #0f1c24;
    overflow-x: auto;
}

.text-columns h2 {
    font-size: 19px;

}

article {
    tab-size: 4;
    display: block;
}

article .text-columns > div:nth-child(1) {
    max-width: 24em;
    padding-left: 4em;
}
article .text-columns > div:nth-child(2) {
    max-width: 24em;
    padding-left: 4em;
}


.main-article-text {
    max-width: 60em;
    padding-left: 14em;
}

article .text-columns > div:nth-child(2) ul li a:hover{
    background-color: #799cb3;
    border-radius: 0.5em;
}

article h2 {
    margin-top: 0.5em;
    margin-bottom: 0.5em;
    text-align: center;
}

article .text-columns {
    display: flex;
    justify-content: center;
    padding-top: 1em;
}

div {
    display: block;
}

.article-li h3 {
    font: bold 20px/1.5;
  }

.article-li li img {
    float: left;
    margin: 0 15px 0 0;
    width: 100px;
    height: 100px;
  }
.article-li li {
    overflow: auto;
    padding: 1em;
}

.article-li li:hover{

    background: #799cb3;
    cursor: pointer;
    border-radius: 0.5em;

}

.left, .right {
    padding: 5% 0 5% 10%;
    display: inline-block;
}

.main-article-text ul{ 
    padding-left: 2em;
    list-style-type: disc;
    padding-top: 1em;

}

.main-article-text a {
    
    color: #4e6c7e;
}

.main-article-text li:hover{
    cursor: pointer;
    text-decoration: underline;
}

article .about-columns h2{
    text-align: left;
}
article .about-columns {
    display: block;
    justify-content: left;
    padding-top: 2em;
    padding-left: 10%;
}

article .about-columns > div:nth-child(1) {
    max-width: 50em;

}
article .about-columns > div:nth-child(2) {
    max-width: 50em;
}

article .about-columns > div:nth-child(3) {
    max-width: 50em;
}