body {
    margin: 0;
    padding: 0;
    background: rgb(35, 35, 35);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif
  }

  nav {
    position: sticky;
    top: 0;
    font-weight: 500;
  
    /* Das ist dafür, dass die Navigation jederzeit anklickbar ist */
    z-index: 99;
  }
.line {
    background-color: rgb(244, 150, 248);
    height: 20px;
    width: 100%;
}
/* Hier wird das Fenster in dem das Viedeo abgespielt werden soll eingestelle. Komplette Breite, 200px höhe.*/
#video {
    width: 100%;
    height: 200;
}
/*hier wird das Video angepasst, es soll immer 100% ausfüllen und der Rest wird abgeschnitten. */
#video video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slidershow {
    width: 700px;
    height: 400px;
    overflow: hidden;
}

.middle {
    position: relative;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.navigation {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%)
}

.bar {
    width: 50px;
    height: 10px;
    border: 2px solid #fff;
    margin: 6px;
    cursor: pointer;
    transition: 0.4s
}
.bar:hover{
    background: #fff;
}
input[name="r"]{
    position: absolute;
    visibility: hidden;

}

.slides{
    width: 500%;
    height: 100%;
    display: flex;
}

.slide {
    width: 20%;
    transition: 0.6s;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#r1:checked ~ .s1{
    margin-left: 0;
}

#r2:checked ~ .s1{
    margin-left: -20%;
}

#r3:checked ~ .s1{
    margin-left: -40%;
}

#r4:checked ~ .s1{
    margin-left: -60%;
}

.wrapper {
    height: 500px;
    background-color: aqua;
    display: grid;
    grid-template-columns: 1fr 1fr 2fr 1fr;
} 

.box {
    margin: 5px;
}

.navigation-bar {
    width: 100%;  /* i'm assuming full width */
    height: 80px; /* change it to desired width */
    background-color: rgb(39, 38, 38); /* change to desired color */
}

.logo {
    display: inline-block;
    vertical-align: top;
    height: 80px;
}
.navigation-bar > a {
    display: inline-block;
    vertical-align: right;
    margin-right: 20px;
    height: 80px;        /* if you want it to take the full height of the bar */
    line-height: 80px;    /* if you want it vertically middle of the navbar */
}