body {
background-image: url("https://printfgrechka.neocities.org/Warning.jpg.jpg");
 background-color: #3F3F44;
margin: 0;
color: #FFFF00;
}
header {
  background-color: black;
  padding: 10px;
  text-align: center;
}
ul.sidenav {
  list-style-type: none;
  margin: 0;
  padding: 0;
  width: 25%;
  background-color: black;
  position: fixed;
  height: 100%;
  overflow: auto;
}

ul.sidenav li a {
  display: block;
  color: #FFFF00;
  padding: 8px 16px;
  text-decoration: none;
}
 
ul.sidenav li a.active {
  background-color: #FFFF00;
  color: black;
}

ul.sidenav li a:hover:not(.active) {
  background-color: black;
  color: white;
}

div.content {
  margin-left: 25%;
  padding: 1px 16px;
  height: 1000px;
}
.lacekoh {
   border-width: 7px;
   border-style: solid; 
   border-image: url("https://i.imgur.com/NJa4bp2.png") 8 fill round; 
    
  margin: 20px 0;
   }
   .container {
   border-radius: 15px;
    border: 2px solid yellow;
  background-color: black;
  
  padding: 10px;
 position: center;
 margin: 10px 0;
   max-width: 400px;
   
}

.container::after {
  content: "";
  clear: both;
  display: table;
}
.time-right {
  float: right;
  color: #FFFF00;
}

@media screen and (max-width: 900px) {
  ul.sidenav {
    width: 100%;
    height: auto;
    position: relative;
  }
  
  ul.sidenav li a {
    float: left;
    padding: 15px;
  }
  
  div.content {margin-left: 0;}
}

@media screen and (max-width: 400px) {
  ul.sidenav li a {
    text-align: center;
    float: none;
  }
}
   .footer {
   position: fixed;
   left: 0;
   bottom: 0;
   width: 100%;
    background-color: rgb(0, 0, 0, 0.8);
   color:#FFFF00;
   text-align: center;
}
hr.new2 {
  border-top: 1px dashed yellow;
}