教务管理系统之css层

add.css

.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.popup {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}

.popup label {
    display: block;
    margin-bottom: 15px;
}

.popup label span {
    display: block;
    font-weight: bold;
    margin-bottom: 5px;
}

.popup input,
.popup select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.popup input[type="submit"] {
    background-color: #4CAF50;
    color: #fff;
    border: none;
    padding: 10px 16px;
    font-size: 16px;
    cursor: pointer;
    border-radius: 4px;
}
.popup textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    resize: vertical; /* 允许垂直调整大小 */
    min-height: 100px; /* 设置最小高度 */
}


#closebtn {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: transparent;
    border: none;
    font-size: 20px;
    color: #999;
    cursor: pointer;
}
textarea {
    text-align: left;
    white-space: pre-line;
    width: 100%;
    padding: 0px;
    border: 1px solid #ccc;
    border-radius: 4px;
    resize: vertical;
    font-family: Arial, sans-serif;
    font-size: 14px;
    color: #333;
    background-color: #f9f9f9;
    margin: 0px;
}

textarea:focus {
    outline: none;
    border-color: #666;
    box-shadow: 0 0 4px rgba(102, 102, 102, 0.3);
}

browse.css

/* 页面样式 */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
}

/* 表格样式 */
table {
    border-collapse: collapse;
    width: 100%;
    margin: 20px 0;
    background-color: #fff;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #3f3f3f;
    color: #fff;
}

/* 输入框和按钮样式 */
input[type="text"] {
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-right: 10px;
}

button {
    padding: 8px 12px;
    background-color: #3f3f3f;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

/* 开关按钮的样式 */
.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

/* 开关按钮的input元素的样式 */
.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

/* 开关按钮的滑块的样式 */
.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    -webkit-transition: .4s;
    transition: .4s;
    border-radius: 34px;
}

/* 开关按钮的滑块的样式当选中时 */
.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    -webkit-transition: .4s;
    transition: .4s;
    border-radius: 50%;
}

/* 开关按钮的input元素选中时的样式 */
input:checked + .slider {
    background-color: #2196F3;
}

/* 开关按钮的input元素选中时滑块的样式 */
input:checked + .slider:before {
    -webkit-transform: translateX(26px);
    -ms-transform: translateX(26px);
    transform: translateX(26px);
}

img {
    border-radius: 50%;
    width: 100px;
    height: 100px;
}
.button {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: 10px;
    font-weight: bold;
    text-align: center;
    text-transform: uppercase;
    text-decoration: none;
    color: #fff;
    background-color: #007bff;
    border: none;
    border-radius: 0.25rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.button:hover {
    background-color: #0062cc;
}

.delete,.reset{
    background-color: #dc3545;
}

.chose,.myStudent ,.myHomework,.myVideo{
    background-color: #0080ff;
}

.delete:hover,.reset:hover {
    background-color: #c82333;
}
.chose:hover,.myStudent:hover,.myHomework:hover,.myVideo:hover {
    background-color: #0080ff;
}
.Id {
    text-decoration: none;
    color: #333;
    position: relative;
    display: inline-block;
}

.Id:before {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #ff6600;
    visibility: hidden;
    transform: scaleX(0);
    transition: all 0.3s ease-in-out;
}

.Id:hover:before {
    visibility: visible;
    transform: scaleX(1);
}

.Id:hover {
    color: #ff6600;
    font-weight: bold;
}
#lab {
    float: right;
    margin-top: 10px;
}

#lab span {
    margin-right: 10px;
    font-weight: bold;
    color: #333;
}
#addlab {
    display: inline-block;
    background-color: #007bff;
    color: #fff;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
}

#addlab span {
    display: inline-block;
}

#addlab .plus {
    margin-left: 5px;
}
.addTea {
    background-color: #4CAF50; /* 设置背景颜色 */
    border: none; /* 去除边框 */
    color: white; /* 设置文字颜色 */
    padding: 3px 5px; /* 设置内边距 */
    text-align: center; /* 设置文字居中 */
    text-decoration: none; /* 去除下划线 */
    display: inline-block; /* 将按钮设为块级元素 */
    font-size: 7px; /* 设置字体大小 */
    margin: 4px 2px; /* 设置按钮之间的间距 */
    cursor: pointer; /* 设置光标为手型 */
    border-radius: 4px; /* 设置圆角 */
    transition-duration: 0.4s; /* 设置过渡时间 */
}

.addTea:hover {
    background-color: #3e8e41; /* 设置鼠标悬停时的背景颜色 */
}
select.Tea {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #f9f9f9;
    color: #333;
    font-size: 14px;
    width: 100px;
}

select.Tea option {
    padding: 5px;
}

.select-arrow {
    position: relative;
    top: 1px;
    right: 8px;
    pointer-events: none;
    border-style: solid;
    border-width: 0.15em 0.15em 0 0;
    content: '';
    display: inline-block;
    height: 0.45em;
    vertical-align: middle;
    width: 0.45em;
    transform: rotate(45deg);
    transition: all 0.3s ease-in-out;
}

.select-arrow::before {
    position: absolute;
    top: -0.3em;
    right: -0.3em;
    pointer-events: none;
    border-style: solid;
    border-width: 0.15em 0.15em 0 0;
    content: '';
    display: inline-block;
    height: 0.45em;
    vertical-align: middle;
    width: 0.45em;
    transform: rotate(90deg);
    transition: all 0.3s ease-in-out;
}

select.Tea:focus,
select.Tea:hover {
    outline: none;
    border-color: #999;
}

.select-arrow:hover {
    transform: rotate(135deg);
}

.select-arrow:hover::before {
    transform: rotate(225deg);
}

browseHomework.css

#addlab {
    display: inline-block;
    background-color: #007bff;
    color: #fff;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
}

#addlab span {
    display: inline-block;
}

#addlab .plus {
    margin-left: 5px;
}
body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
}

.homework-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    align-items: flex-start;
    margin-top: 20px;
    width: 100%;
    height: 100%;
}

.homework-item {
    flex: 0 0 15%; /* 控制每行显示的视频项数量，这里设置为每行显示4个 */
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin: 10px;
    padding: 10px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease-in-out;
}

.homework-item:hover {
    transform: scale(1.02);
}

.homework-item img {
    width: 100%;
    height: auto;
    border-radius: 4px;
}

.homework-item p {
    margin-top: 10px;
    font-size: 16px;
    font-weight: bold;
    color: #333;
}

.homework-item span {
    font-size: 30px;
    color: #888;
}
.delete-button {
    width: 40px;
    height: 40px;
    background-color: #ff5252;
    border: none;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.delete-button i {
    color: #fff;
    font-size: 20px;
}

.delete-button:hover {
    background-color: #ff0000;
}
.a {
    display: inline-block;
    padding: 10px;
    border-radius: 4px;
    text-decoration: none;
    color: #333;
    transition: background-color 0.3s ease;
}
.a:hover {
    background-color: #ffffff;
}

#sp1 input[type="radio"] {
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid blue;
}
#sp2 input[type="radio"] {
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid gray;
}
#sp3 input[type="radio"] {
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid green;
}

#homeworkLab1 input[type="radio"]:checked {
    background-color: blue;
}

#homeworkLab1 input[type="radio"][value="1"]:checked {
    background-color: gray;
}

#homeworkLab1 input[type="radio"][value="1"]:checked + span {
    color: gray;
}

#homeworkLab1 input[type="radio"][value="2"]:checked {
    background-color: green;
}

#homeworkLab1 input[type="radio"][value="2"]:checked + span {
    color: green;
}


#homeworkLab2 input[type="radio"]:checked {
    background-color: blue;
}

#homeworkLab2 input[type="radio"][value="1"]:checked {
    background-color: gray;
}

#homeworkLab2 input[type="radio"][value="1"]:checked + span {
    color: gray;
}

#homeworkLab2 input[type="radio"][value="2"]:checked {
    background-color: green;
}

#homeworkLab2 input[type="radio"][value="2"]:checked + span {
    color: green;
}
#sp1{
    color: blue;
}
#sp2{
    color: gray;
}
#sp3{
    color: green;
}

browseVideo.css

#addlab {
    display: inline-block;
    background-color: #007bff;
    color: #fff;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
}

#addlab span {
    display: inline-block;
}

#addlab .plus {
    margin-left: 5px;
}
body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
}

.video-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly;
    align-items: flex-start;
    margin-top: 20px;
    width: 100%;
    height: 100%;
}

.video-item {
    flex: 0 0 25%; /* 控制每行显示的视频项数量，这里设置为每行显示4个 */
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin: 10px;
    padding: 10px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease-in-out;
}

.video-item:hover {
    transform: scale(1.02);
}

.video-item img {
    width: 100%;
    height: auto;
    border-radius: 4px;
}

.video-item p {
    margin-top: 10px;
    font-size: 16px;
    font-weight: bold;
    color: #333;
}

.video-item span {
    font-size: 14px;
    color: #888;
}
.delete-button {
    width: 40px;
    height: 40px;
    background-color: #ff5252;
    border: none;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.delete-button i {
    color: #fff;
    font-size: 20px;
}

.delete-button:hover {
    background-color: #ff0000;
}
.a {
    display: inline-block;
    padding: 10px;
    border-radius: 4px;
    text-decoration: none;
    color: #333;
    transition: background-color 0.3s ease;
}
.a:hover {
    background-color: #ffffff;
}
#lab {
    display: flex;
    align-items: center;
    justify-content: right;
    background-color: #f2f2f2;
    padding: 10px;
    border-radius: 5px;
}

#lab span {
    margin-right: 10px;
    font-weight: bold;
}

#condition {
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 3px;
}

#find,#find1 {
    padding: 5px 10px;
    background-color: #4CAF50;
    color: #fff;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

#find:hover,#find1:hover {
    background-color: #45a049;
}

changePwd.css

body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-image: url("https://starry-lixu.oss-cn-hangzhou.aliyuncs.com/202209141908599.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

form {
    margin: 20px auto;
    max-width: 400px;
    padding: 20px;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
}

input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 3px;
    box-sizing: border-box;
}

input[type="submit"] {
    display: block;
    width: 100%;
    padding: 10px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

input[type="submit"]:hover {
    background-color: #0056b3;
}

input[type="submit"]:focus {
    outline: none;
}

detail.css

body {
    font-family: Arial, sans-serif;
    background-image: linear-gradient(to bottom, #e0eaf1, #f5f5f5);
    padding: 20px;
    box-sizing: border-box;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

h1 {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 10px;
}


table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
}

th, td,input {
    padding: 10px;
    border: 1px solid #ccc;
    text-align: center;
}

th {
    font-weight: bold;
    background-color: #f2f2f2;
}

.active {
    color: green;
}

.inactive {
    color: red;
}
img {
    border-radius: 50%;
    width: 100px;
    height: 100px;
}

function.css

@charset "utf-8";
/* CSS Document */

body {
    font-family: "Lato", sans-serif;
    transition: background-color .5s;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-image: url("https://picsum.photos/1920/1080");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
#openbtn {
    font-size: 30px;
    cursor: pointer;
    background: linear-gradient(45deg, #ff00ff, #00ffff);
    border: none;
    color: #fff;
    padding: 10px 20px;
    border-radius: 20px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.2);
    transform: perspective(100px) rotateX(10deg);
}

#openbtn:hover {
    transform: perspective(100px) rotateX(0deg) scale(1.1);
    box-shadow: 0px 8px 20px rgba(0, 0, 0, 0.3);
}

/*侧边栏选择器*/
.sidenav {
    height: 100%;
    width: 0; /*原始宽度*/
    position: fixed;
    /*z-index、top、left共同控制侧栏的悬浮（上方1，下方-1）*/
    z-index: 1;
    top: 0;
    left: 0;
    background-color: #111;
    overflow-x: hidden;
    transition: 0.5s; /*侧栏延迟0.5s显示*/
    padding-top: 60px;
}

/*侧边栏标签选择器*/
.sidenav a {
    padding: 8px 8px 8px 32px;
    text-decoration: none;
    font-size: 25px;
    color: #818181;
    display: block;
    transition: 0.3s; /*标签延迟0.3s显示*/
}

/*侧栏标签和关闭按钮光标的效果*/
.sidenav a:hover, .offcanvas a:focus{
    color: #f1f1f1;
}

/*侧栏和关闭按钮的位置选择器*/
.sidenav .closebtn {
    position: absolute;
    top: 0;
    right: 25px;
    font-size: 36px;
    margin-left: 50px;
}

/*主体内容*/
#main {
    transition: margin-left .5s;/*主体内容延迟0.5s整体y右移动*/
    padding: 16px;
}

/*当文档高度小于450px时，改变侧栏的padding属性和字体大小*/
@media screen and (max-height: 450px) {
    .sidenav {padding-top: 15px;}
    .sidenav a {font-size: 18px;}
}
.user-info {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 10px;
    float: right;
}

.user-info img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 10px;
}

.user-name {
    font-size: 24px;
    cursor: pointer;
    color: #8c00ff;
    -webkit-text-stroke: 2px #00ffff;
}

header {
    text-align: center;
    margin-top: 50px;
}

h1 {
    font-size: 48px;
    cursor: pointer;
    background: linear-gradient(45deg, #ff00ff, #00ffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}


section iframe {
    display: block;
    width: 70%;
    height: 800px;
    margin: 20px auto;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
    border-radius: 2px;
    object-fit: cover;
}
aside {
    position: absolute;
    left: 0;
    top: 5%;
    background-color: rgba(255, 255, 255, 0.49);
    padding: 20px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
    border-radius: 5px;
}

homeworkDetail.css

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

.homework {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border: 2px solid lightblue; /* 添加这一行 */
    background-color: lightblue; /* 添加这一行 */
}

.homework h1 {
    color: #333;
    font-size: 24px;
    text-align: center;
}

.homework p {
    color: #666;
    font-size: 16px;
    line-height: 1.5;
}

.homework img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 10px auto;
}

.answer-container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border: 2px solid lightblue;
    background-color: lightblue;
}

.answer-container h1 {
    color: #333;
    font-size: 24px;
    text-align: center;
}

.answer-item {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    flex-direction: column;
    background-color: white;
    border: 2px solid rgba(255, 255, 255, 0.49);
}

.avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin-right: 20px;
    border: 2px solid gray;
}

.stuAnswer {
    width: 300px;
    height: auto;
    margin: 0 auto;
}
.an_score {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 300px;
    margin: 10px auto;
}

.an_score input[type="text"] {
    border: 1px solid black;
    padding: 5px;
}

.an_score input[type="submit"] {
    border: none;
    border-radius: 20px;
    background-color: #0080ff;
    color: white;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    cursor: pointer;
}

login.css

body {
    background: linear-gradient(-45deg, #EE7752, #E73C7E, #23A6D5, #23D5AB);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
}

@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}
form {
    background-image: url("../img/login.jpg");
    background-size: cover;
    padding: 20px;
    border: 1px solid #ccc;
    margin: auto;
    width: 40%;
    height: 20%;
    padding: 20px;
    border-radius: 5px;
}


h1 {
    text-align: center;
    font-size: 40pt;
    font-family: Arial, Helvetica, sans-serif;
    color: #333;
}

label {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 20pt;
    color: #555;
}

input[type="text"], input[type="password"], select {
    display: block;
    margin: 10px 0;
    width: 100%;
    padding: 10px;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 20pt;
    color: #333;
    border: 1px solid #ccc;
    border-radius: 5px;
}
input[type="submit"] {
    margin: 30px auto;
    padding: 20px;
    background-color: #4CAF50;
    width: 100%;
    color: #fff;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 20pt;
    border: none;
    border-radius: 50px;
    cursor: pointer;
}

input[type="submit"]:hover {
    background-color: #3e8e41;
}

#id, #pwd {
    width: 100%;
}

register.css

form {
    margin: auto;
    width: 40%;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background: white;
}

label {
    display: block;
    margin: 10px 0;
    font-weight: bold;
    font-size: 15pt;
}

input[type="text"], input[type="password"], select, input[type="file"] {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    width: 100%;
    box-sizing: border-box;
}

input[type="radio"] {
    margin-right: 10px;
}

input[type="submit"],input[type="button"] {
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    width: 100%;
    margin-top: 20px;
}

input[type="submit"]:hover,input[type="button"]:hover {
    background-color: #3e8e41;
}
body {
    background: linear-gradient(-45deg, #EE7752, #E73C7E, #23A6D5, #23D5AB);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
}

@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}
select{
    font-size: 15pt;
}

stuHomworkDetail.css

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

.homework,.myAnswer {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border: 2px solid lightblue; /* 添加这一行 */
    background-color: lightblue; /* 添加这一行 */
}

.homework h1 {
    color: #333;
    font-size: 24px;
    text-align: center;
}

.homework p {
    color: #666;
    font-size: 16px;
    line-height: 1.5;
}

.homework img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 10px auto;
}

form {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    border: 1px solid #ccc;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}

form label {
    color: #333;
    font-size: 16px;
}

form input[type="file"] {
    width: 300px;
    height: auto;
    border-radius: 5px;
    border: none;
    background-color: lightblue;
    cursor: pointer;
}

form input[type="submit"] {
    width: 100px;
    height: auto;
    border-radius: 5px;
    border: none;
    background-color: lightgreen;
    cursor: pointer;
}

videodetail.css

body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
}

header {
    background-color: #333;
    color: #fff;
    padding: 20px;
    text-align: left;
}

h1 {
    margin: 0;
}

section {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
}

div {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    flex-direction: column;
}

video {
    width: 100%;
    max-width: 600px;
    height: auto;
}

span {
    font-size: 18px;
    color: #888;
    margin-top: 10px;
    text-align: left;
}

p {
    font-size: 16px;
    color: #333;
    margin-top: 10px;
    text-align: left;
}