body{
    text-align: center;
    background: linear-gradient( bisque, white);
    background-repeat: no-repeat;
    background-size: cover;
}

h1{
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    font-size: 50px;
    font-weight: bold;
}

button{
    cursor: pointer;
}

.main{
    background-color: orange;
    border: 3px solid black;
    border-radius: 30px;
    width: 300px;
    padding: 20px 30px;
    margin: 20px auto;
}

#screen-el{
    border-radius: 20px;
    width: 250px;
    font-size: 20px;
    padding: 12px 20px;
}

#add-btn, #delete-btn{
    font-size: 18px;
    border-radius: 12px;
    border: 1px solid black;
    color: white;
    font-weight: bold;
    background-color: grey;
    font-family: inherit;
    margin: 15px ;
    padding: 5px 16px;
}

.container button{
    margin: 0px 10px;
    border-radius: 12px;
    border: 1px solid black;
    color: white;
    font-weight: bold;
    background-color: grey;
    font-family: inherit;;
    padding: 7px 16px;
}

ol{
    background-color: antiquewhite;
    width: 300px;
    margin: 20px auto;
    border: 3px solid black;
    border-radius: 30px;
    padding: 20px 30px;
}

ol li{
    margin: 10px 30px;
    border: 2px solid black;
    padding: 5px 15px;
    border-radius: 20px ;
    background-color: white;
}