style.css

body{
    background-image: linear-gradient(120deg, #f6d365, #fda085);
    color: white;
    font-family: "Poppins", sans-serif;
    min-height: 100vh;
}
header{
    font-size: 1.5rem;
}
header,
form{
    min-height: 5vh;
    display: flex;
    justify-content: center;
    align-content: center;
}

form input,
form button {
    padding: 0.5rem;
    font-size: 2rem;
    border: none;
    background: white;
}
form button{
    color: #d88771;
    background: white;
    cursor: pointer;
    transition : all 0.3s ease;

}
form button:hover {
    
    background:#d88771;
    color: white;

}
.todo-container{
    display: flex;
    justify-content: center;
    align-items: center;
}
.todo-list{
    min-width: 20%;
    list-style: none;
    justify-content: center;
    align-items: center;
    padding-right: 40px;
}
.todo{
    margin: 0.5rem;
    background: white;
    color:black;
    font-size: 1.5rem;
    display: flex;
    justify-content:  space-between;
    align-items: center;
}
.todo li{
    flex:1;

}
.complete-btn, .delete-btn{
    background: #ff6f47;
    color:white;
    border:none;
    padding: 1rem;
    cursor: pointer;
}
.complete-btn{
    background: green;
}
.completed {
    text-decoration: line-through;
    opacity : 0.5; 
}