* {
  font-family: Arial, Helvetica, sans-serif;
}

body{
  background-color: rgb(240,240,255);
}

table{
  margin-top: 12px;
  background-color: rgb(240,240,255);
}

td{
  background-color: rgb(255,255,123);
  width: 25%;
  color: blue;
}

tr{
  background-color: rgb(255,255,123);
}

h1, h2, h3, h4, h5, h6{
  text-align: left;
  color: rgb(25, 25, 112);
}

p, h1, h2, h3, h4, h5, h6{
  text-align: left;
  color: rgb(25, 25, 112);
  line-height: 1.4;
}

h1 {font-size:4.2em;   margin:0; padding:0; margin-bottom:0em; margin-top:0.3em;}
h2 {font-size:3.1em;   margin:0; padding:0; margin-bottom:0em; margin-top:0.3em;}
h3 {font-size:2.35em;  margin:0; padding:0; margin-bottom:0em}
h4 {font-size:1.75em;  margin:0; padding:0; margin-bottom:0em}
h5 {font-size:1.4em;   margin:0; padding:0; margin-bottom:0em; margin-top:0.3em;}
h6 {font-size:1.2em;   margin:0; padding:0; margin-bottom:0em; margin-top:0.3em;}

a{ 
  color: rgb(0, 0, 255);
}

a:hover {
  color: red;
  font-weight: bold;
}

img {
  display: block;
  align: left;
}

.center {
  margin: auto;}

.sticky {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
}

#mass {
  width:50%; 
  text-align:justify; 
  padding-left:3vw; 
  padding-right:3vw; 
  margin: 0px auto;  
  column-count: 1;
}