*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
body{
    background-color: #f5f5f5;
    display: flex; 
    color: #444;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;  
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
}
form{
    /* 1- horizontal 2- vertical 3-blur tarqalish*/
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    width: 400px;
    max-width: 100%;
}
h1{
    color: rgb(179, 131, 226);
    font-size: 9rem;
    text-align: center;
    opacity: 0.4;
}
.input{
    border: none;
    display: block;
    width: 100%;
    color: #444;
    font-size: 2rem;
    padding: 1rem 2rem;
}        
.input::placeholder{
    color: #d5d5d5;
}
.todos{
    background-color: #ffffff;
    margin: 0;
    padding: 0;
    list-style: none;
}
.todos li{
    cursor: pointer;
    font-size: 1.5rem;
    padding: 1rem 2rem;
    border-top: 1px solid #e5e5e5;
}
.t2{
    color: #b6b6b6;
    text-decoration: line-through;
}
small{
    color: #b5b5b5;
    margin-top: 3rem;
    text-align: center;
}