#menu {text-align: center;}
li {list-style-type: none;}

li, #logo {transition: all 300ms; -webkit-transition : all 300ms; -moz-transition : all 300ms; -o-transition : all 300ms;}

header {
    width: 100%;
    height: 65px;
    position: fixed;
    top: 0;
    left: 0;
    background: white;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    z-index: 1;
}

#logo {
    width: 140px;
    float: left;
    margin: 10px 0 0 50px;
}

#logo:hover {
    opacity: 0.5;
}

#logo img {
    width: 100%;
}

header nav {
    float: right;
    margin: 10px 50px 0 0;
}

header nav ul li {
    float: left;
    margin-left: 25px;
}

header nav ul li a {
    font-size: 16px;
}

header nav ul li:hover {
    opacity: 0.5;
}

.material-symbols-outlined {
    display: none;
}

@media screen and (max-width: 900px) {

    #menu {
        display: none;
    }

}