body{
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #5433FF;  /* fallback for old browsers */
    background: -webkit-linear-gradient(to right, #A5FECB, #20BDFF, #5433FF);  /* Chrome 10-25, Safari 5.1-6 */
    background: linear-gradient(to right, #A5FECB, #20BDFF, #5433FF); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
}
h1{
    background-color: #2980b9;
    color:white;
    margin: 0;
    padding: 1.2vh 2.4vh;
    text-transform: uppercase;
    font-size: 2.8vh;
    font-weight: 400;
    border-radius: 2vh 2vh 0 0;
}
input{
    background-color: #f7f7f7;
    font-size: 2.5vh;
    width: 100%;
    padding: 1.2vh 1.2vh 1.2vh 1.8vh;
    box-sizing: border-box;
    color: #2980b9;
    border: 0.4vh solid rgba(0,0,0,0);
}
ul{
    list-style: none;
    margin: 0;
    padding: 0;
}
li{
    height: 6vh;
    line-height: 6vh;
    color: #666;
}

li span{
    background: #e74c3c;
    height: 6vh;
    margin-right: 3vh;
    text-align: center;
    color: white;
    width: 0vh;
    display: inline-block;
    transition: 0.2s linear;
    opacity: 0;
}

input:focus{
    background: white;
    border: 0.4vh solid #2980b9;
    outline: none;
}

li:nth-child(2n+1){
    background-color: white;
}

li:hover span{
    width: 6vh;
    opacity: 1;
}

li:last-child{
    border-radius: 0 0 2vh 2vh;
}

li:last-child span{
    border-radius: 0 0 0 2vh;
}

.completed{
    color: grey;
    text-decoration: line-through;
}

.fa-plus{
    padding-top: 0.4vh;
    float: right;
}

#container{
    width: 45vh;
    background-color: #f7f7f7;
    box-shadow: 0 0 0.4vh rgba(0,0,0,0.1);
    margin: 20vh auto;
    border-radius: 2vh;
}