body {
    margin: 0;
    padding: 0;
    background:white;
    background-size: cover;
    background-position: center;
    font-family: sans-serif;
}

.top-panel {
    display: flex;
    width: 100%;
    justify-content: center;
    margin-top: 20px;
}

.top-panel .back-btn {
    width: 100px;
    height: 35px;
    position: fixed;
    top: 10px;
    left: 10px;
    background-color: white;
    cursor: pointer;
    border: 1px solid lightgray;
    border-radius: 4px;
}

.top-panel h1 {
    display: table;
    justify-content: center;
    color: black;
    font-size: 25px;
    margin: 0px;
}

.content-panel {
    display: flex;
    width: 100%;
    justify-content: center;
    margin-top: 20px;
}

.content-panel .cover-panel {
    margin-top: 10px;
    justify-content: center;
    vertical-align: middle;
    height: 160px;
}

.content-panel .cover-panel .cover-frame {
    display: flex;
    float: left;
    width: 150px;
    height: 150px;
    border: 1px solid lightgray;
    border-radius: 5px;
    position: relative;
}

.content-panel .cover-panel .cover-frame .cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 5px;
}

.content-panel .cover-panel .cover-frame .cover-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 5px;
}

.content-panel .cover-panel .cover-input-panel {
    margin-left: 160px;
}

.content-panel .btn-panel {
    display: flex;
    width: 100%;
    justify-content: center;
    margin-top: 20px;
}

.content-panel .btn-panel .update-btn {
    display: flex;
    justify-content: center;
    border: 1px solid darkgray;
    width: 100px;
    height: 35px;
    font-size: 20px;
    color: #fff;
    background: linear-gradient(120deg,#a6c0fe 0%, #71e4f8 100%);
    border-radius: 4px;
    cursor: pointer;
    margin: 5px;
}

.content-panel .btn-panel .delete-btn {
    display: flex;
    justify-content: center;
    border: 1px solid darkgray;
    width: 100px;
    height: 35px;
    font-size: 20px;
    color: #fff;
    background: linear-gradient(120deg,#f14441 0%, #f97373 100%);
    border-radius: 4px;
    cursor: pointer;
    margin: 5px;
    margin-left: 100px;
}