style.css

#container{
      height: 300px;
        display: flex;
        align-items: flex-end;
        margin: 100px;
        background-color:rgb(245, 179, 226);
        border: 3px solid slategrey;
  
}

#h1{
    border: 2px solid black;
    font-family: sans-serif;
    padding: 2px;
}

body{
    display: flex;
    align-items: center;
    flex-direction: column;
    font-family: 'Times New Roman', Times, serif;
    background-color: rgb(255, 176, 230);
}

.bar{
    width: 20px;
    background-color:deepskyblue;
    margin: 1px;
    border-radius: 10px;
}

.btn{
   
   
        display: inline-block;
        padding: 10px 20px;
        background-color: #0078d4;
        color: #fff;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        font-size: 16px;
        transition: background-color 0.3s ease, transform 0.2s ease;
    }

    .btn:hover {
        background-color: #ff0000;
        transform: translateY(-3px);
        box-shadow: 0px 3px 6px rgba(0, 0, 0, 0.1);
    }