html{
box-sizing: border-box;
margin: 0;
padding: 0;
 }
 *, *::before, * ::after {
box-sizing: inherit;
}
body {
font-family: arial, verdana, sans-serif;
color: #000;
font-size: 100%;
text-decoration: none;
 }
 video{
 max-width: 100%;
 height: auto;
 }
  
header {
display: flex;
justify-content: center;
background-color: #fff;
max-width: 100%;
   } 
ul {
  list-style-type: disc;
  margin: 0;
  padding: 0;
  font-size: 1.25rem;
}
 a {
 color: #494949;
 text-align: center;
 font-weight: 500;
 list-style-type: none;
}
 a:hover {
  color: #F42300;
   }
p { 
 word-wrap: break-word;
 font-size: 1.25rem;
 text-align: left;
 color: #000
  }
.responsive {
  max-width: 100%;
  height: auto;
}
img {
 border: 8px solid #D4FEFF;
 max-width: 100%;
 }
.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}
  h1 {
  text-align: center;
  font-size: 2rem;
  color:#2A1FAA;
  }  
  h2 {
  text-align: center;
  font-size: 1.25rem;
  color:#0053AA;
  } 
  h3 {
  text-align: center;
  font-size: 1rem;
  color:#0079F2;
  }  

  
  blockquote {
  text-align: left;
  font-size: 1.5rem;
  color: #000;
  }
  input[type=submit]{
  width: 10rem; height: 3rem;
  text-align: center;
  font-size: 2rem;
  }
 .sekiu-grid {
display: grid;
grid-template-columns: 3rem 1fr 1fr 1fr;
grid-template-rows: 3rem 1fr;
 }
 .sidebar {
grid-column-start: 1;
grid-column-end: 2;
grid-row: 1/10;
background-color: #D4FEFF;
border: 6px solid #0079F2;
border-style: double;
padding: 0;
writing-mode: vertical-lr;
text-align: start;
font-size: 1.25rem;
color: #2A1FAA;
 }
 .divider {
grid-column: 2/-1;
grid-row: 1/2;
padding: 0;
background-color:#D4FEFF;
border: 6px solid #0079F2;
border-style: double;
text-align: start;
font-size: 1.25rem;
color: #2A1FAA;
 }
 .content1 {
grid-column: 2/-1;
grid-row: 2/-1;
align-self: start;
margin: auto;
padding: 2rem;
 }
 footer {
display:flex;
background-color: #D4FEFF;
color: #000000;
border: 6px solid #0079F2;
border-style: double;
padding: 0;
align-items: flex-start;
 }
@media screen and (max-width: 768px){

  body {
font-family: arial, verdana, sans-serif;
color: #000;
font-size: 75%;
text-decoration: none;
 }

  }