style.css

/* ANIMATION */
@keyframes strike{
    0%   { width : 0; }
    100% { width: 100%; }
  }
/* STYLE */

* {
  box-sizing: inherit;
  margin: 0;
  padding: 0;
  letter-spacing: inherit;
}

body {
  background-image: linear-gradient(
      to right,
      rgba(235, 235, 235, 0.6),
      rgba(235, 235, 235, 0.6)
    ),
    url("https://images.unsplash.com/photo-1512284125381-bdb1f3a77338?ixid=MXwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHw%3D&ixlib=rb-1.2.1&auto=format&fit=crop&w=334&q=80");
  background-position: bottom;
  background-size: cover;

  box-sizing: border-box;
  font-family: "Teko", sans-serif;
  letter-spacing: 1px;

  display: flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
}

form {
  margin: 1rem 0 2rem 0;
}

h1 {
  font-size: 5rem;
  color: limegreen;
}

p{
  font-size: 1.8rem;
}

input {
  padding: 0.5rem 1rem;
  font-size: 1.5rem;
  border: none;
  outline: none;
  width: 40rem;
  margin-right: -7.5rem;
  font-family: inherit;
  border-radius: 1px;
}

select {
  border: none;
  outline: none;
  width: 7rem;
  height: 100%;
  font-size: 1.5rem;
  text-align: center;
  padding: 0.5rem 0;
  text-align: center;
  text-align-last: center;
  background-color: transparent;
  font-family: inherit;
}

.main-area {
  display: flex;
  justify-content: space-around;
  align-items: flex-end;
  width: 80%;
  margin-bottom:2rem;
}

h2 {
  color: rgb(66, 65, 65);
}

ul {
  border: 2px solid #e5e5e5;
  height: 30rem;
  width: 30rem;
  padding: 0 2.5rem;
  background-color: white;
  border-radius: 5px;
  list-style: none;
  overflow: auto;
}

li {
  font-size: 1.8rem;
  text-align: center;
  padding-top: 1rem;
  display: flex;
  justify-content: space-between;
  color:palevioletred;

}

.text{
    font-family: 'Rubik', sans-serif;
    overflow:hidden;
    width:70%;
    text-overflow : ellipsis;
    white-space : nowrap;
    cursor:pointer;
}

.textarea{
    border:none;
    font-size:1.8rem;
    outline:none;
    border-bottom: 1px solid black;
    resize: none;
}

li span {
  display: inline-block;
}

i:not(:last-child) {
  margin-right: 1rem;
}

.complete {
  color: rgb(255, 208, 0);
}

.strike {
  position: relative;
}

.strike::after {
  content: " ";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  background: #b5b5b5;
  animation-name: strike;
  animation-duration: .2s;
  animation-timing-function: linear;
  animation-iteration-count: 1;
  animation-fill-mode: forwards;
}

.delete{
    color:#b5b5b5;
    font-style: italic;
}

.invisible{
    display:none;
}

.far{
    cursor:pointer
}

.dragstart{ 
    opacity:0;
}

.dragenter{
    border:2px dashed rgb(78, 75, 75);
}

.trash-can{
  background-color: rgb(168, 167, 167);
  border:none;
  outline:none;
  width:3.5rem;
  height:3.5rem;
  border-radius: 100px;
  box-shadow: 0px 1px 5px rgba(0,0,0, 0.6);
  cursor: pointer;
}

.trash-can .far{
  font-size:2.5rem;
}