body {
    font-family: "Lato", sans-serif;
    width: 1200px;
    max-width: 100%;
    margin-left: 30px;
    font-family: Arial, Helvetica, sans-serif;
}

h2 {
    display: block;
    font-size: 1.5em;
    margin-top: 10px;
    margin-block-start: 0.83em;
    margin-block-end: 0.83em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
}

h3 {
    display: block;
    font-size: 1.17em;
    margin-block-start: 1em;
    margin-block-end: 1em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
}

h4 {
    display: block;
    margin-block-start: 1.33em;
    margin-block-end: 1.33em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
}

.text-content p {
    ox-sizing: border-box;
    max-width: 42rem;
}

p {
    font-size: 120%;
    text-indent: 30px;
    margin-bottom: 24px;
    margin-left: 24px;
    padding: 0;
    border: 0;
    display: block;
    margin-block-start: 1em;
    margin-block-end: 1em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
}

figure {
    float: center;
    width: 95%;
    text-align: center;
    font-size: 120%;
    text-indent: 0;
    border: thin silver solid;
    margin: 0.5em;
    padding: 0.5em;
}

.previous {
    float: left;
    width: 120px;
    margin-left: 5px;
    background-color: #f1f1f1;
    color: black;
}

.previousnext {
    font-size: 140%;
    margin-top: 20px;
    margin-bottom: 60px;
    padding: 0.5em;
}

.next {
    float: right;
    width: 110px;
    margin-right: 5px;
    background-color: #4CAF50;
    color: white;
}

a {
    text-decoration: none;
    display: inline-block;
}

li {
    padding-top: 2px;
    padding-bottom: 2px;
    font-size: 120%;
}

a:hover {
    background-color: #ddd;
    color: black;
}

.boxed {
    border: 1px solid green;
    font-size: 1.6rem;
}

.exer:before,
.note:before,
.exmp:before,
.actv:before {
    float: left;
    margin: -1px 0 -5px -25px;
    display: inline-block;
    width: 30px;
    content: '';
    background-image: url(../img/exer.png);
    background-repeat: no-repeat;
    background-size: 26px;
    margin-top: 5px;
    margin-left: -5px;
    margin-right: 5px;
    height: 30px;
}

.exmp:before {
    background-image: url(../img/examicon.png);
}

.note:before {
    background-image: url(../img/noteicon.svg);
    background-size: 30px;
}

.actv:before {
    background-image: url(../img/actv.png);
    background-size: 30px;
}

.exer,
.note,
.exmp,
.actv {
    background: #fff3d4;
    padding-left: 25px;
    border-left-width: 5px;
    border-left-style: solid;
    box-sizing: border-box;
    max-width: 100%;
    overflow: hidden;
    margin-bottom: 20px;
    padding: 10px;
    clear: none;
    font-family: x-locale-heading-primary, zillaslab, Palatino, "Palatino Linotype", x-locale-heading-secondary, serif;
    font-size: 1.8rem;
}

.exmp {
    background-color: #ffe8d4;
}

.note {
    background-color: #d9d9d9;
}

.actv {
    background-color: #fcf8f7;
}

.exer:after,
.note:after,
.exmp:after,
.actv:after {
    content: ' ';
    clear: both;
    display: table;
}

.showbutton {
    background-color: #4CAF50;
    /* Green */
    border: none;
    border-radius: 10px;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
}

/* Display two or more images */
.imgrow {
    display: flex;
}


/* Three image containers (use 25% for four, and 50% for two, etc) */
.imgcolumn {
    float: left;
    width: 33.33%;
    padding: 5px;
}

/* Clear floats after image containers */
.imgrow::after {
    content: "";
    clear: both;
    display: table;
}

.twoimg {
    float: left;
    height: 90%;
    padding: 5px;
}

.imgmid {
    width: 6%;
    padding: 5px;
}

.imgleft {
    float: left;
    width: 47%;
    padding: 5px;
}

.imgright {
    float: right;
    width: 47%;
    padding: 5px;
}


.imgone {
    width: 100%;
}

.navbar-nav {
    font-size: 1.8rem;
}

.dropdown-menu {
    font-size: 1.5rem;
}

p {
    font-size: 1.8rem;
}

.answerbutton {
    background-color: #4CAF50;
    /* Green */
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    border-radius: 8px;
}

.notexam {
    color: red;
}