#header {
    color: #fff;
    position: fixed;
    top: 0;
    background: transparent;
    height: 60px;
    width: 100vw;
    box-shadow: rgba(149, 157, 165, 0.2) 0px 8px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#header:hover {
    color: #000;
    background-color: #fff;
    transition: background-color 0.5s linear;
}

#header .left {
    height: 100%;
    display: flex;
    align-items: center;
}

.left .title {
    font-weight: 800;
    margin-left: 48px;
    font-size: 24px;
    cursor: pointer;
}

#header .right {
    height: 100%;
    display: flex;
    align-items: center;
}

.right .menu-box {
    display: flex;
    justify-content: space-evenly;
    align-items: center;
}

.menu-box .menu-item {
    display: flex;
    align-items: center;
    margin-right: 30px;
    font-size: 18px;
    cursor: pointer;
}

.menu-box .menu-item:hover {
    color: rgb(244, 126, 0);
}

.right .avatar-img {
    height: 100%;
    border-radius: 50%;
    margin-right: 50px;
}

.right .avatar-img img {
    height: 40px;
    width: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 1s;
}

.avatar-img img:hover {
    transform: rotate(360deg);
    -webkit-transform: rotate(360deg);
    -moz-transform: rotate(360deg);
    -o-transform: rotate(360deg);
    -ms-transform: rotate(360deg);
}