div{max-width: 1000px; position: absolute; left: 50%; transform: translate(-50%,0); text-align: justify;}
math{font-size: 20px}
figcaption math{font-size: 16px}
p{text-align: justify; font-size: 20px; line-height: 1.5}
.texsite{text-align: justify; font-size: 13px; color: gray;}
h1{font-size: 38px}
h2{font-size: 30px}
h3{font-size: 25px}
figcaption{text-align: justify; padding-top: 5px;}
figure{text-align: center;}
table{text-align: center; border: 1px solid #ddd; font-size: 18px;  margin-left: auto; margin-right: auto;}
td{text-align: center; border: 1px solid #ddd;}
th{text-align: center; border: 1px solid #ddd;}