body{
    background-image: url("img/background_image.jpg");
    background-size: cover;
    overflow: hidden;

}
td:hover{
    font-size: 20.2px;
}
.container_history_roll{
    position: absolute;
    margin: auto;
    left:0;
    right:0;
    top:0;
    bottom:0;
    width:650px;
    height:610px;
    background: rgba(102, 51, 153,0.5);
    -webkit-border-radius:20px;
    -moz-border-radius:20px;
    -ms-border-radius:20px;
    border-radius:20px;
    box-shadow: 0px 0px 15px 2px black;
}
@media (max-width:760px){
    .container_history_roll{
        width:500px;
        height:650px;
    }
}
.naglowek_historia{
    text-align: center;
    background: rgba(89, 45, 134,0.7);
    width:100%;
    margin:0;
    height:70px;
    border-top-left-radius:20px;
    border-top-right-radius:20px;
    color:mediumpurple;
    display: flex;
    justify-content: center;
    align-items: center;

}
table{
    margin: auto;
    left:0;
    right:0;
    display: flex;
    justify-content: center;
    align-items: center;
}
th{
    background: rgba(128, 0, 128,0.3);
    color: rgba(255,255,255,0.6);
    font-size:20px;


}
td{
    color: rgba(255,255,255,0.6);
    font-weight: 600;
    font-size:20px;
    text-align: center;
}

.nav{
    position: absolute;
    bottom: 50px;
}
.container_nav{
    position: absolute;
    top:-198px;
    left:-100px;
    width:1500px;
    height:198px;
    z-index:1;
    transition: 1s;
    transform-origin: bottom right;
    border-bottom-right-radius:100px;
    background: -webkit-linear-gradient(top right,rgba(128, 0, 128,0.7),rgba(128, 64, 191,0.9));
    background: -moz-linear-gradient(top right,rgba(128, 0, 128,0.7),rgba(128, 64, 191,0.9));
    background: -ms-linear-gradient(top right,rgba(128, 0, 128,0.7),rgba(128, 64, 191,0.9));
}
.nav a{
    left:100px;
    position: relative;
    font-size:35px;
    text-decoration: none;
    margin: 10px;
    font-weight:600;
    font-family: cursive,Arial;
    color:mediumpurple;
    transition: 0.5s;
}
.nav a:hover{
    font-size:40px;
    filter: blur(1px);
}
.nav_bt{
    position:absolute;
    cursor: pointer;
    width: 30px;
}

.nav_bt div{
    position: relative;
    width:30px;
    height: 4px;
    border-radius: 1px;
    background: #7339ac;
    margin-top:6px;


}
.nav_bt div:nth-child(2){
    position: absolute;
    width:50%;
    transition:left 0.3s,transform 0.5s,opacity 0.7s ;


}
.nav_bt div:nth-child(3){
    left:50%;
    width:50%;
    transition:left 0.3s,transform 0.5s,opacity 0.7s ;
}
.nav_bt div:nth-child(1){

    transition: 0.5s;

}
.nav_bt div:nth-child(4){
    transition: 0.5s;
}
.container_nav_bt{
    position: absolute;
    width:50px;
    height:50px;
    background: rgba(255,255,255,0.4);
    display: flex;
   align-items: center;
    justify-content: center;
    margin:auto;
    bottom:0;
    top:0;
    left:0;
    box-shadow: 0px 0px 8px 0px black;
    cursor: pointer;

}