body{
    font-family: 'Roboto Slab', serif;
    background: #ffd89b;  /* fallback for old browsers */
    background: -webkit-linear-gradient(to right, #19547b, #ffd89b);  /* Chrome 10-25, Safari 5.1-6 */
    background: linear-gradient(to right, #19547b, #ffd89b); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */

}
#todos{
    width: 360px;
    margin: 100px auto;
    box-shadow: 0 0 3px rgba(0,0,0,100);
    background-color: #f7f7f7;
}
.completed{
    color: darkgrey;
    text-decoration: line-through;
}
h1{
    background-color: #2980b9;
    color: white;
    text-transform: capitalize;
    font-size: 2rem;
    font-weight: 400;

}
ul{
    list-style: none;
    margin: 0;
    padding: 0;
    
}

li{
    background-color: white;
    height: 40px;
    line-height: 40px;
    color: #666;
}
li:nth-child(2n){
    /* every other li */
    background-color: #f7f7f7;
}
li:hover span{
    width: 40px;
    opacity: 1;
}
input{
    background-color: #f7f7f7;
    font-size: 18px;
    width: 100%;
    color: #2980b9;
    font-weight: 600;
    border: none;
}
input:focus{
    background-color: azure;
    outline: none;
    border: 3px solid #2980b9;
}
.fa-pencil-alt{
    float: right;
    font-size: 20px;
    padding-top: 10px;
    padding-right: 10px;
}
/* .fa-trash-alt{
    padding: 4px;
} */

span{
    background-color: #e74c3c;
    height: 40px;
    margin-right: 20px;
    color: white;
    width: 0px;
    display: inline-block;
    text-align: center;
    opacity: 0;
    transition: 0.3s linear;
    
}