* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    overflow-x: hidden;
  }

body{
    background-image: radial-gradient(
        circle,
        rgb(0, 180, 255) 19%,
        rgb(255 255 255 / 100%) 76%
      );
      background-size: cover;
      font-family: Arial, Helvetica, sans-serif;
      width: 100%;
      overflow-x: hidden;

}

nav ul{
    padding-left: 0;
    width: 18%;
    min-width: 400px;
    position: fixed;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: flex-start;
    list-style-type: none;
    margin: 11px;
}

li a{
    display: inline-block;
    color: black;
    content: ">";
    font-size: 80%;
    font-weight: bold;
    padding: 0 3px;
    text-decoration: none;
}

ul{
    width: 50%;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: space-between;
    list-style-type: none;
    padding: 0;

}
li{
    transform: rotate(90);
}

.box{
    width: 98%;
    padding: 2em;
margin: 1%;
    border-bottom: 0.2rem black solid;

}


a{
    color: black;
    text-decoration: none;
}

a:hover{
    text-decoration: underline;
    color: black;
}

p{
    color: black;
    margin: 20px 15px;
}


h1{
    margin: 30px 15px;
    font-size: 2.8rem;
}

.ex h1{
font-size: 2.8rem;
margin: 40px 15px;
}



.vide{
    height: 30vh;
}