style.css

html, body {
  min-height: 100%;
}

body {
  background-color: rgb(31, 30, 30);
  color: white;
  background-image: url('https://drizzleandhurricanebooks.com/wp-content/uploads/2019/06/list.gif');
  margin: 0;
  padding: 0;
}

.container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-left: 25%;
  margin-right: 25%;
  margin-top: 3rem;
  padding: 2rem 0;
  border: solid 1px rgb(81, 80, 80);
  border-radius: 8px;
  background-color: rgb(30, 29, 29);
}

h1, p {
  font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
  text-align: center;
  
}

#blockAction {
  display: flex;
  justify-content: center;
  align-items: center;
}

.list {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: larger; 
}

.hoverBtn {
  transition: background 1s;
}

/* li {
  transition: all 0.5s;
  cursor: pointer;
}

li:hover {
  -webkit-transform: scale(1.5);
  transform: scale(1.5);
} */

.hoverBtn:hover {
  color: white;
  background-color: rgb(47, 29, 150);
}

.todo-li {
  list-style: none;
}

.marcado {
  background-color: rgb(128, 128, 128);
}

.completed {
  text-decoration: line-through solid rgb(0, 0, 0);

}

.footer {
  position: absolute;
    bottom: 0;
    background-color: rgb(97, 97, 192);
    color: #FFF;
    width: 100%;
    height: 50px;    
    text-align: center;
    text-decoration: none;
}

a {
  color: white;
}