.container {
    max-width: 1000px;
    margin: auto;
    padding: 40px;
    background-color: #f9f9f9;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

span {
    margin-left: 1rem;
}

.titleSpan {
    margin-left: 0;
    display: block;
	font-size: 21px;
	font-weight: 300;
}

.section {
    padding-top: 20px;
    padding-bottom: 30px;
}

.author {
    padding-bottom: 35px;
}

.author p {
    font-size: 14px;
    margin: 0;
}

.equation-container {
    padding-inline-start: 80px;
    padding-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

table {
    width: 100%;
    margin: auto;
    border-collapse: collapse;

}

th, td {
    border: 1px solid black;
    padding: 0px 8px;
    text-align: right;
}

th {
    background-color: #dddcdc;
    text-align: center;
}

#table3 td {
    border-left: 1px solid black;
    border-right: 1px solid black;
    border-top: none;
    padding-bottom: 3px;
    border-bottom: none;
}
#table3 table {
    border: 1.5px solid black;
}



.t2 {
    background-color: #d7e4f1;
;
    text-align: center;
}
.t3 {
    background-color: #adc8e2;
    text-align: center;
}
.t4 {
    background-color: #83acd2;
    text-align: center;
}

#table2, #table3 {
    width: 80%;
    margin: auto;
}

#table2 h3,
#table2 p,
.Images3x3 h3,
.Images3x3 p,
.Images2x2 h3,
.Images2x2 p,
#table3 h3,
#table3 p {
    display: inline;
    vertical-align: top;
    font-size: 16px;
    line-height: 28px;
}

/* images 3x3 */
.Images3x3 {
    width: 100%;
    margin: auto;
    padding-top: 60px;
}
.row {
    display: flex;
}
.column {
    flex: 33.33%;
    padding: 5px;
}

/* images 2x2 */
.Images2x2 {
    width: 100%;
    margin: auto;
    padding-top: 30px;
}
.row {
    display: flex;
}
.column {
    flex: 50%;
    padding: 5px;
}

a {
    color: blue;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}