.container1 {
    display: flex;
   height: 100vh;
}

.sidebar1 {
    width: 20%;
    background: #00070e;
    color: white;
    padding: 20px;
    box-sizing: border-box;
}

.card1 {
    background: #34495e;
    padding: 20px;
    margin-bottom: 10px;
    border-radius: 8px;
    cursor: pointer;
    text-align: center;
    transition: 0.3s;
}

.card1:hover {
    background: #1abc9c;
}

.content1 {
    width: 80%;
    padding: 30px;
    background: #ecf0f1;
    box-sizing: border-box;
    overflow-y: auto;
}