style.css

*{
    margin:0;
    padding:0;
    font-family: 'Poppins', sans-serif;
    box-sizing: border-box;
}
html,body{
    height:100%;
   
}
body{
    /* background-color: #b46548; */
    /* background: linear-gradient(150deg,black,rgb(22, 43, 205),rgb(190, 15, 15)); */
}
.container{
    width:100%;
    background: linear-gradient(150deg,black,rgb(22, 43, 205),rgb(190, 15, 15));
    padding-top:10px;
}
.scroll{
    height:66.8vh; 
    overflow-y:scroll;
}
.todo{
    width:100%;
    max-width: 540px;
    background: wheat;
    margin: 50px auto 20px;
    padding: 40px 30px 40px;
    border-radius:10px;
}
.todo h2{
    color: brown;
    display:flex;
    align-items: center;
    margin-bottom: 20px;
}
.todo h2 img{
    width:30px;
    margin-left: 20px;
}
.row{
    position: relative;
    display:flex;
    align-items:center;
    justify-content:space-between;
    background: black;
    border-radius:30px;
    padding-left: 20px;
    margin-bottom:25px;
}
input{
    flex:1;
    border:none;
    border-style: none;
    background:transparent;
    padding:10px;
    font-weight:14px;
    text-align: left;
    outline:none;
    color: whitesmoke;
}
button{
    border:none;
    outline:none;
    padding:15px 40px;
    cursor:pointer;
    font-size: 16px;
    border-radius: 50px;
    background-color: #e46930;
}
ul li{
    list-style: none;
    display:flex;
    font-size:17px;
    text-align:justify;
    padding:12px 8px 12px 50px;
    user-select:none;
    position: relative;
}
ul li::before{
    content:'';
    position: absolute;
    top:12px;
    left: 8px;
    width: 28px;
    height:28px;
    border-radius: 90%;
    background-image: url(./assets/unchecked.png);
    background-size: cover;
    background-position: center;
}
ul li.checked{
    color:#555;
    text-decoration: line-through;

}

ul li.checked::before{
    background-image: url(./assets/checked.png);
}

ul li span{
    position:absolute;
    right:0;
    top:5px;
    width:40px;
    height:40px;
    font-size:25px;
    color:#e31313;
    line-height:40px;
    text-align:center;
    border-radius: 50%;
}

ul li span:hover{
    background: rgb(197, 173, 130);
}