body {
    background-color: black;
    color: white;
    margin: 30px;
    font-family: "Lucida Console";
    font-size: 16px;
}

 * {box-sizing: border-box}
 
 .container {
display: grid;
grid-template:
"header header header"
"sidebar main bside";
grid-template-columns: 1fr 4fr 1fr;
padding: 5px;
margin-left: 70px;
margin-right: 70px;
}

header { 
    grid-area: header;
    padding: 5px 100px 5px;
    max-height: 100px;
}

aside { 
    grid-area: sidebar;
    padding: 2px;
}

main { 
    grid-area: main; 
    padding: 5px;
    height: 920px;
    max-height: 920px;
    overflow-y: scroll;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

main::-webkit-scrollbar {
    display: none;
}

bside { 
    grid-area: bside; 
    padding: 5px;
    max-width: 400px;
}

/* Style the tab */
.tab {
  float: left;
  background-color: black;
  width: 200px;
  height: 300px;
  max-height: 920px;
  overflow-y: scroll;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.tab::-webkit-scrollbar {
    display: none;
}

/* Style the buttons that are used to open the tab content */
.tab button {
  display: block;
  background-color: inherit;
  color: white;
  padding: 5px;
  width: 100%;
  border: none;
  outline: none;
  text-align: left;
  cursor: pointer;
  transition: 0.3s;
  border-bottom: 2px solid white;
  font-size: 20px;
}

/* Change background color of buttons on hover */
.tab button:hover {
  background-color: black;
}

/* Create an active/current "tab button" class */
.tab button.active {
  background-color: black;
}

/* Style the tab content */
.tabcontent {
  float: left;
  background-color: black;
  padding: 0px 12px;
  width: 70%;
  border-left: 2px solid white;
  height: 600px;
  max-height: 600px;
  overflow-y: scroll;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.tag {
  display: inline-block;
  text-align: right;
  width: fit-content;
  padding: 5px;
  background-color: #4A4A4A;
  border-radius: 5px;
  border: 2px solid #8A8A8A;
  margin: 10px;
  font-size: 16px;
}

.tabcontent::-webkit-scrollbar {
    display: none;
}

a.reg:link{
  color: white;
}

a.reg:visited{
  color: white;
}

a.reg:hover{
  color: grey;
}