style.css

body{
    margin: 0;
    font-family: 'Courier New', Courier, monospace;
    background:linear-gradient(to bottom , lightblue ,lightgreen) ;
    display: flex;
    min-height: 100vh;
    justify-content: center;
    align-items: center;
    text-align: center;
}
.container{
    background-color: aliceblue;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 15px 25px rgba(0,0,0,4);
    width: 90%;
    margin: 10px ;
    display: flex;
    flex-direction: column;
    text-align: center;
    justify-content: center;
    align-items: center;
}
h2{
    font-weight: 400;
}
.input{
    padding: 20px 10px;
    font-size: 18px;
    border-radius: 5px;
    text-align: center;
    width: 100px;
}
.errorMessage{
    color: red;
    font-weight: 600;
    margin: 10px;
    display: none;
}
.btn{
    text-transform: uppercase;
    margin: 20px 0;
    width: 250px;
    height: 45px;
    
    font-size: 18px;
    border-radius: 5px;
   color:aliceblue;
   background-color: blue;
   box-shadow: 0 10px 5px rgba(0,0,0,1);
}
.btn:hover{
    color: aliceblue;
    background-color: green;
  cursor: pointer;
  transition: background-color 300ms ease-in-out;
}


.gallery img{
    width: 400px;
    height: 250px;
    object-fit: cover;
    border-radius: 5px;
    margin: 5px;
}
.gallery{
    display: none;
}