body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background: #f3f3f3;
  }
  
  .parallelogram-container {
    display: flex;
    justify-content: space-between;
  }
  
  .parallelogram {
    width: 20vh;
    height: 70vh;
    transform: skew(-20deg);
    background-size: cover;
    transition: width 1s;
    cursor: pointer;
    margin: 0 5vh;
    z-index: 3;
    /* border: 1px solid rgb(0, 0, 0); */
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.519), 0 6px 6px rgba(0, 0, 0, 0.623);
    box-sizing: border-box;
  }
  
  .lddiv {
    width: 40vh;
    height: 10vh;
    transform: skew(-20deg);
    background-size: cover;
    transition: width 1s;
    cursor: pointer;
    margin: 0 20px;
    z-index: 3;
    /* border: 1px solid rgb(0, 0, 0); */
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.519), 0 6px 6px rgba(0, 0, 0, 0.623);
    box-sizing: border-box;
  }
  
  .rddiv {
    width: 20vh;
    height: 10vh;
    transform: skew(-20deg);
    background-size: cover;
    transition: width 1s;
    cursor: pointer;
    margin: 0 20px;
    z-index: 3;
    /* border: 1px solid rgb(0, 0, 0); */
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.519), 0 6px 6px rgba(0, 0, 0, 0.623);
    box-sizing: border-box;
  }
  
  .ltdiv {
    width: 20vh;
    height: 10vh;
    transform: skew(-20deg);
    background-size: cover;
    transition: width 1s;
    cursor: pointer;
    margin: 0 20px;
    z-index: 3;
    /* border: 1px solid rgb(0, 0, 0); */
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.519), 0 6px 6px rgba(0, 0, 0, 0.623);
    box-sizing: border-box;
  }
  
  .parallelogram:hover {
    width: 600px;
    filter: blur(0);
  }
  
  .parallelogram:hover .texta {
      opacity: 0;
  }
  
  .parallelogram:hover .background {
    filter: blur(0);
  }
  
  .background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    transition: filter 1s;
    filter: blur(5px);
  }
  
  .texta {
    position: absolute;
    top: 84%;
    left: 70%;
    transform: translate(-50%, -50%) skew(20deg) rotate(-70deg);
    color: #cac6c3;
    font-size: 40px;
    white-space: nowrap;
    filter: blur(0);
    transition: opacity 0.1s;
    opacity: 1;
    text-align: left;
    width: 100%;
    position: fixed;
  }
  
  .lddiv { 
    position: absolute;
    left: -3%;
    bottom: 1%;
    background-color: #000000;
    border-right: 8px solid white;
  }
  
  .rddiv { 
    position: absolute;
    right: -3%;
    bottom: 1%;
    background-color: #000000;
    border-left: 8px solid white;
    z-index: 3;
  }
  
  .ltdiv { 
    position: absolute;
    left: -3%;
    top: 2%;
    background-color: #000000;
    border-right: 8px solid white;
    z-index: 3;
  }
  
  
  .textld {
    position: absolute;
    top: 26%;
    left: 20%;
    /* transform: translate(-50%, -50%) skew(20deg) rotate(-70deg); */
    color: #ffffff;
    font-size: 30px;
    text-align: right;
  }
  
  .textrd {
    position: absolute;
    top: 26%;
    left: 20%;
    /* transform: translate(-50%, -50%) skew(20deg) rotate(-70deg); */
    color: #ffffff;
    font-size: 30px;
    text-align: right;
  }
  
  .github {
    position: absolute;
    right: -3%; /* 添加这行代码 */
    bottom: 1%; /* 添加这行代码 */
    width: 20vh; /* 添加这行代码 */
    height: 10vh; /* 添加这行代码 */
    transform: skew(-20deg);
    z-index: 4;
  }
  
  .github img {
    position: absolute;
    top: 50%;
    left: 36%;
    transform: translate(-50%, -50%) skew(20deg);
    width: 40%; /* 添加这行代码 */
    height: auto; /* 添加这行代码 */
  }
  
  .back {
    position: absolute;
    left: -3%; /* 添加这行代码 */
    top: 2%; /* 添加这行代码 */
    width: 20vh; /* 添加这行代码 */
    height: 10vh; /* 添加这行代码 */
    transform: skew(-20deg);
    z-index: 4;
  }
  
  .back img {
    position: absolute;
    top: 50%;
    left: 70%;
    transform: translate(-50%, -50%) skew(20deg);
    width: 40%; /* 添加这行代码 */
    height: auto; /* 添加这行代码 */
  }
  
  .title, .description {
    position: absolute;
    color: white;
    opacity: 0;
    transition: opacity 1s;
  }
  
  .title {
    top: 5%;
    right: 10%;
    font-size: 40px;
  }
  
  .description {
    bottom: 10%;
    left: 10%;
    font-size: 16px;
  }
  
  .parallelogram:hover .title, .parallelogram:hover .description {
    opacity: 1;
  }
  
  .overlay {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 10%;
    height: 9%;
    background-color: white;
    transform: skew(0deg);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 10px;
    box-sizing: border-box;
    opacity: 0;
    transition: opacity 1s;
  }
  
  .overlay a {
    align-self: flex-end;
    color: black; /* 修改这行代码 */
    font-size: 20px; /* 修改这行代码 */
    text-decoration: none; /* 修改这行代码 */
    white-space: nowrap;
    transition: all 1s; /* 添加这行代码 */
    width: 40%;
    bottom: 3%;
  }
  
  .parallelogram:hover .overlay a {
    width: 100%; /* 添加这行代码 */
  }
  
  .parallelogram:hover .overlay {
    opacity: 1;
  }