* {
    margin: 0px;
    padding: 0px;


}

body {
    height: 100vh;
    background-size: 100%;
    background-image: url('http://www.7sir.cloud/wp-content/uploads/2022/09/2022091823555271.jpg');
    background-repeat: no-repeat;
    display: flex;
    /* background-color: rgb(255, 0, 0); */
}

/* 背景透明 */
.body {
    width: 100vw;
    background-color: rgba(255, 255, 255, 0.5);
}


.Sidebar {
    width: 15vw;
    background-color: rgb(245, 239, 239);
}

.Sidebar img {
    height: 20vh;
    width: 10vw;
    margin: 2vw;
    border-radius: 45%;
}

.Sidebar li,
.Sidebar li a {
    margin-top: 1vh;
    height: 12vh;
    background-color: rgb(245, 239, 239);
    list-style-type: none;
}

.Sidebar li a:hover {
    background-color: rgb(255, 255, 255);
}


.Sidebar li a {
    font-size: 25px;
    text-decoration: none;
    font-family: 宋体;
    color: black;
    display: block;
    width: 15vw;
    text-align: center;
    line-height: 12vh;
}

.content {
    height: 90vh;
    width: 80vw;
    margin-top: 3vh;
    margin-left: 3vw;
    border-radius: 10px;
    background-color: rgba(255, 255, 255, 0.5);
}




.foot {
    margin-left: 35%;
    margin-top: 2vh;
}

.foot a {
    color: rgb(0, 0, 0);
    text-decoration: none;
}