body{
background-color: brown;
      font-family:Courier, "Lucida Console", monospace;
  }
  div.Pasek{
    background: url("bg.png") no-repeat center center fixed; 
      text-align: center;
      border: 2px solid white;
      }
      div a {
        text-align:center;
        color: rgb(230, 230, 230);
        font-size: 19px;
        padding: 10px;
        margin: 5px;
        display:inline-block;
       z-index: 7;
      }
      ul {
        display: inline;
        margin: 15px;
        top: 47px;
        padding: 0;
        z-index: 7;
      }
      ul li {display: inline-block;}
      ul li:hover ul {display: block;}
      ul li ul {
        position:absolute;
        width: 190px;
        display: none;
        z-index: 7;
      }
      ul li ul li { 
      display: block; 
      color: white;
      border: 2px solid white;
      z-index: 7;
      }
      ul li ul li a {display:inline-block;} 
      ul li ul li{
        background-color: rgb(0, 0, 0);
        z-index: 7;
      }
      ul li ul li:hover{
        background-color: rgb(154, 0, 0);
        z-index: 7;
      }
  #zegar{
    position: absolute;
    left: 89%;
    top: 2%;
    font-size: 35px;
    color: white;
  }
  .logo{
    position: absolute;
    width: 52px;
    right: 1588px;
    top: 8px;
    border: 2px solid red;
  }
  .logo:hover{
   background-color:rgba(255, 255, 255, 0.5);
   transition: all 0.3s linear 0s;
  }
  .Zad1{
    border: 7px black solid;
    border-radius: 5px;
    padding-left: 20px;
    margin-bottom: 20px;
    padding: 20px;
    margin-top:20px ;
    width: 1430px;
    color:black;
    background-color: white;
    }
    
    .Zad2{
    border: 2px black solid;
    padding-left: 20px;
    margin-bottom: 20px;
    padding: 20px;
    margin-top:20px ;
    width: 1430px;
    background-color: white;
    }
    
    .pojemnik{
    border: 2px black solid ; 
    padding: 40px;
    margin-top:35px ;
            }
    .Zad3{border: 2px black solid;
    padding: 40px;
    margin-bottom: 20px;
    width: 1390px;
    height: 500px;
    background-color: white;
    }
    .Zad4{
    width: 1430px;
    height: 940px;
    border: 2px black solid;
    padding: 20px;
    background-color: white;
    }
    .xd{
    background-color: red;
    width: 279px;
    height: 760px;
    border-right: 10px black solid;
    padding: 20px 30px;
    margin-left: auto;
    float: left;
    }
    .ad{
    background-color: rgb(106, 255, 0);
    width: 279px;
    height: 760px;
    border-right: 10px black solid;
    padding: 20px 30px;
    margin-right: auto;
    float: left;
            }
    .ap{
    background-color: blue;
    width: 279px;
    height: 760px;
    border-right: 10px black solid;
    padding: 20px 30px;
    margin-left: auto;
    float:left; 
    }
    .ar{
    background-color: green;
    width: 279px;
    height: 760px;
    border-right: 10px black solid;
    padding: 20px 30px;
    margin-right: auto;
    float:left;
    }
    button{
    border-radius: 100px;
    color: black;
    float: left;
    }
    .a{
    border: 2px black solid;
    padding-left: 20px;
    margin-bottom: 20px;
    padding: 20px;
    margin-top:20px ;
    width: 1430px;
    }
            
    table{
    width:94% ;
    border: 1px solid black
    }
    td {
    border: 1px solid black;
    background-color: white ;
    }
    
    th{
    width:9% ;
    border: 1px solid maroon ;
    background-color:orange;
    }