@import url('https://fonts.googleapis.com/css2?family=Open+Sans&display=swap');
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Open Sans', sans-serif;
    background-color: black;
    background-image: url("images/background.jpg");  
    background-position: center;    
    background-attachment: fixed;
    background-size: 100%;
    margin-left: 3%;
    margin-right: 3%;
}
a {
    color: rgb(255, 255, 255);
    text-decoration: none;
    font-weight: bold;
}
html {
    scroll-behavior: smooth;
}
img {
    vertical-align: middle;
    max-width: 1500px;
}
li {
    list-style: none;
}
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px;
    background-color: rgb(100, 100, 100, 0.9);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 999;
    width: 100%;
    height: 50px;
}
.nav_links a {
    color: #fff;
}
.logo {
    font-size: 30px;
}
.nav_menu {
    display: flex;
    font-size: 18px;
}
.nav_menu li:hover {
    background-color: rgba(75, 75, 75, 0.9);
    border-radius: 5px;
    transition: 0.5s ease;
}
.nav_menu li {
    padding: 5px 10px;
}
input[type=checkbox] {
    display: none;
}
.hamburger {
    display: none;
    font-size: 24px;
    user-select: none;
}
.ts_dropdown {
    position: relative; 
}
.dropdown {
    background-color: rgb(100, 100, 100, 0.9);
    position: absolute; /*WITH RESPECT TO PARENT*/
    display: none;
    border-radius: 8px;
    top: 35px;
    right: 0px;
}
.dropdown li + li {
    margin-top: 10px;
}
.dropdown li {
    padding: 5px 10px;
    width: 13em;
    text-align: center;
  }
.dropdown li:hover {
    background-color: rgba(75, 75, 75, 0.9);
  }
.ts_dropdown:hover .dropdown {
    display: block;
}
@media (max-width: 1020px) {
    .nav_menu {
        display:none;
        position: absolute;
        background-color:rgb(100, 100, 100, 0.9);
        right: 0;
        left: 0;
        text-align: center;
        padding: 5px 0;
        margin-top: 14px;
    }
    .nav_menu li:hover {
        display: inline-block;
        background-color:rgba(75, 75, 75, 0.9);
        transition: 0.5s ease;
    }
    .nav_menu li + li {
        margin-top: 5px;
    }
    input[type=checkbox]:checked ~ .nav_menu {
        display: block;
    }
    .hamburger {
        display: block;
    }
    .dropdown {
        right: 0px;
        top: 30px;
        transform: translateX(35%);
    }
    .dropdown li:hover {
        background-color: rgba(75, 75, 75, 0.9);
    }
}
.headline1 {
    color: rgb(255, 255, 255);
}
.headline2 {
    color: rgb(184, 30, 30);
}
.ts {
    margin-top: 5px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 5px;
}
.ts_viewer {
    background-color: rgba(100, 100, 100, 0.7);
    border: 3px solid rgb(90, 90, 90);
    min-height: 500px;
    flex-basis: 300px;
    flex-grow: 1;
    flex-shrink: 1;
    padding: 3px;
}
.container {
    margin-top: 55px;  
    background-color: rgb(100, 100, 100, 0.7);
    border: 3px solid rgb(90, 90, 90);  
    padding: 3px;     
    color: white;
}
table,th,td {
    border: 1px solid white;
}       
.end {
    margin-top: 20px;  
    text-align: end;    
    color: white;
}