#web_end {
    width: 100vw;
    height: 100vh;
}

.TSC_menu {
    background-size: 100% 100%;
    user-select: none;
    width: 100%;
    height: 100%;
    background-image: url('https://pic1.imgdb.cn/item/67b599f4d0e0a243d400c357.jpg');
}

.login {
    background-size: 100% 100%;
    user-select: none;
    width: 20%;
    height: 30%;
    top: 50%;
    left: 15%;
    position: relative;
}

.login button {
    display: flex;
    height: 30%;
    width: 100%;
    border-radius: 10px;
    color: white;
    background-color: rgba(0, 0, 0, 0.7);
    font-size: 4vh;
    margin-bottom: 2vh;
    cursor: pointer;
    justify-content: center;
    align-items: center;
}

.login button:hover {
    transform: scale(1.2);
    transition: 100ms;
}

.Teacher_login_template {
    background-size: 100% 100%;
    width: 15%;
    height: 30%;
    top: 50%;
    left: 50%;
    background-color: rgba(0, 0, 0, 0.7);
    transform: translate(-50%, -50%);
    position: relative;
}

.Teacher_login_template > div {
    display: flex;
    color: white;
    height: 30%;
    width: 100%;
    font-size: 4vh;
    margin-bottom: 2%;
    justify-content: center;
    align-items: center;
}

.Teacher_login_template input {
    margin-bottom: 2vh;
    width: 98%;
    height: 10%;
    opacity: 0.8;
}

.Teacher_login_template > button {
    width: 100%;
    height: 15%;
    cursor: pointer;
    background-color: #00AEEC;
}

.Teacher_login_template > button:hover {
    background-color: springgreen;
    transition: 200ms;
}

div.Teacher_login_error_message {
    display: block;
    text-align: left;
    height: 15%;
    width: 100%;
    color: red;
    font-size: 2vh;
}

.Student_login_template {
    background-size: 100% 100%;
    width: 15%;
    height: 30%;
    top: 50%;
    left: 50%;
    background-color: rgba(0, 0, 0, 0.7);
    transform: translate(-50%, -50%);
    position: relative;
}

.Student_login_template > div {
    display: flex;
    color: white;
    height: 30%;
    width: 100%;
    font-size: 4vh;
    margin-bottom: 2%;
    justify-content: center;
    align-items: center;
}

.Student_login_template input {
    margin-bottom: 2vh;
    width: 98%;
    height: 10%;
    opacity: 0.8;
}

.Student_login_template > button {
    width: 100%;
    height: 15%;
    cursor: pointer;
    background-color: #00AEEC;
}

.Student_login_template > button:hover {
    background-color: springgreen;
    transition: 200ms;
}

div.Student_login_error_message {
    display: block;
    height: 15%;
    width: 100%;
    color: red;
    font-size: 2vh;
}

.Menu {
    background-size: 100% 100%;
    width: 100vw;
    height: 100vh;
    overflow: scroll;
    /* background-image: url("https://pic1.imgdb.cn/item/67b82373d0e0a243d40146c5.jpg"); */
}

.Menu-logout {
    text-align: center;
    width: 5%;
    height: 5%;
    color: black;
    font-size: 100%;
    cursor: pointer;
    user-select: none;
    font-family: "PingFang SC", "Hiragino Sans GB", "Heiti SC", "Microsoft YaHei", "WenQuanYi Micro Hei";
    display: inline-block;
}

.Menu-logout:hover {
    color: aqua;
    transition: 200ms;
}

.Register_template {
    background-size: 100% 100%;
    width: 15%;
    height: 30%;
    top: 50%;
    left: 50%;
    color: white;
    background-color: rgba(0, 0, 0, 0.7);
    transform: translate(-50%, -50%);
    position: relative;
}

.Register_template > h2 {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 0;
    margin-top: 0;
}

.Register_template input {
    margin-top: 2vh;
    width: 98%;
    height: 10%;
    opacity: 0.8;
}

.Register_template > select {
    margin: 2vh 0 2vh 0;
    width: 40%;
    height: 8%;
}

.Register_template > button {
    width: 50%;
    height: 15%;
    cursor: pointer;
    float: right;
    margin-top: 2vh;
    background-color: #00AEEC;
}

.Register_template > button:hover {
    background-color: springgreen;
    transition: 200ms;
}

.Register_error_messages {
    display: block;
    width: 100%;
    height: 10%;
    font-size: 1.5vh;
    color: red;
}

.Menu > nav {
    width: 100%;
    height: 2%;
}

.teacher_menu {
    position: relative;
    width: 100%;
    height: 90%;
    border-style: solid none solid none;
    border-width: 1px;
    border-color: black;
}

.teacher_menu_leftMenu {
    display: inline-block;
    width: 20%;
    height: 100%;
    border-style: none solid none none;
    border-color: black;
    border-width: 1px;
    user-select: none;
}

.teacher_menu_rightMenu {
    position: relative;
    float: right;
    width: 78%;
    height: 100%;
    overflow: scroll;
    max-width: 78%;
    max-height: 100%;
}

.teacher_menu_questionnaire {
    position: absolute;
    top: 2%;
    width: 30%;
    height: 10%;
    user-select: none;
    display: inline;
}

.teacher_menu_input {
    width: 98%;
    height: 3vh;
    border-radius: 12px;
}

.textArea {
    position: absolute;
    /* height: 85%;
    width: 98%; */
    border-style: solid;
    border-color: black;
    border-width: 1px;
    top: 13%;
}

.save_button {
    margin: 0 10px;  
    display: inline-block;
    font-size: 100%;
}

.save_button:hover {
    color: aqua;
    transition: 200ms;
}

.teacher_menu_leftMenu li:hover {
    color: aqua;
    cursor: pointer;
}