#container {
  background: antiquewhite;
  width: 360px;
  margin: 100px auto;
  border: 2px solid antiquewhite;
}

body {
  font-family: 'Roboto', sans-serif;
}

h1 {
  padding: 10px 20px;
  margin: 0;
  font-size: 24px;
  font-weight: normal;
}
h1 i {
  float: right;
}

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

li {
  cursor: text;
  color: black;
  text-decoration: none;
  background: white;
  height: 40px;
  line-height: 40px;
}

li:nth-child(even) {
  background: bisque;
}

li:hover span {
    width: 40px;
    opacity: 1.0;
}

span {
  background: red;
  height: 40px;
  width: 0;
  display: inline-block;
  margin: 0 20px 0 0;
  text-align: center;
  color: white;
  transition: 0.3s linear;
  opacity: 0;
}
span:hover {
  cursor: pointer;
}

input {
  font-size: 18px;
  background: bisque;
  width: 100%;
  padding: 13px 13px 13px 20px;
  box-sizing: border-box;
  color: black;
  border: 3px solid bisque;
}

input:focus {
  background: white;
  border: 3px solid bisque;
  outline: none;
}

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