style.css

/* 
# Nome: Mathias Fernandes 
# n° 10734352
# email: mathfern4@gmail.com
# email usp: mathfernandes@usp.br
# atividade sobre vue 
*/

  div h1, div{
    font-family: Arial, Helvetica, sans-serif;
    display: table;
    text-align: left;
    padding: 0vh 2vw 0vh 0vw;
    margin-left: 2rem;
  }

  .list-group {
    padding: 0;
  }

  .list-group-item {
    padding: 0;
  }

  form {
    display: inline-block;
  }
 
  div.form-group input {
    width: 10%;
    margin: 0;
    padding: 0vh 4vw 0vh 1vw;
  }
  
  div.form-group form input{
    width: 40%;
    margin: 0;
    padding: 0vh 4vw 0vh 1vw;
  }

  input.error {
    width: 50%;
    margin: 0;
    padding: 2vh 2vw 2vw 2vw;
    background-color: rgb(240, 155, 155);
  }

  button {
    background-color: royalblue;
    border-radius: 10px;
    padding: 1vh 2vw 1vh 2vw;
    color: white;
    text-align: center;
  }

  .task {
    overflow: hidden;
    overflow-y: scroll;
    max-height: 150px;
    margin: 0;
  }
  
  ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
  }
  
  .list-group li {
    width: 50vw;
    float: left;
    border: 0.3px solid rgb(214, 213, 213);
    list-style: none;
    text-align: left;
    padding: 1vh 5vw 1vh 1vw;
  }
  
  .list-group li:hover {
    background-color: rgb(214, 213, 213);;
    border: 0.3px solid rgb(168, 168, 168);
  }
  
  .danger {
    background-color: tomato;
    float: right;
  }