.logo {
    width: 16%;
    display: inline-block;
}
header {
    background-color: #4CB4DA;
position: fixed;
    width: 100%;
    margin-top: -10px;
    z-index: 2;
}
nav {
    width: 80%;
    margin: auto;

}
ul {
    display: inline-block;
    float: right;
    margin-top: 34px;

}
li {
    display: inline-block;
    padding: 20px;
    font-size: 20px;
    font-weight: bold;
}
li:hover {
    background-color: blue;
    color: white;
    cursor: pointer;
    text-decoration: underline;
    text-decoration-thickness: 4px;
}
.slid {
    width: 100%;
}
.a {
    width: 100%;
    height: 300px;
}
.b {
    width: 50%;
    display: inline-block;
    height: 300px;
}
.zone {
    color:#4CB4DA;
    background-color: black;
    width: 100%;
   border: red dashed;
    text-align: center;
}
.z {
    color: black;
    text-decoration: none;
}
.pic {
    margin-left: 50px;
    margin-top: 30px;
}
.pic:hover {
    transform: scale(1.05);
    box-shadow: 10px 29px 30px black;
    border: 2px  solid #4CB4DA;
}
.back {
    background-image: url(img/background.png);
    margin-top: -10px;


}
.copy {
    background-color: tomato;
    color: white;
    font-size: 26px;
    text-align: center;
    margin-top: 30px;
    margin-bottom: 20px;
}