style.css

/*
 * Title: To Do List CSS file
 * Description: This file has all the styles associated with the To Do App project
 * Author: Sumit Saha ( Learn with Sumit )
 * Date: 12/16/2020
 *
 */

* {
  box-sizing: border-box;
}

.container {
  background: #d3efdf;
  padding: 25px;
  max-width: 760px;
  margin: 25px auto;
  overflow: hidden;
  border-radius: 10px;
  border: 4px solid #b1c9bb;
  font-family: sans-serif;
}

h1,
h2 {
  margin: 0;
  text-align: center;
  text-transform: uppercase;
}

h2 {
  font-size: 20px;
  text-align: center;
  border-bottom: 1px solid #b1c9bb;
  padding: 0 0 10px;
  color: #57635c;
}

.logo {
  width: 100%;
  text-align: center;
}

.logo img {
  width: 100px;
}

.new-task-container {
  text-align: center;
}

.box {
  padding: 10px 15px;
  border: 2px solid #b1c9bb;
  border-radius: 5px;
  background: #fff;
  margin: 15px 0;
}

.todo-list {
  float: left;
  width: 46%;
}

.complete-list {
  float: right;
  width: 46%;
}

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

li {
  padding: 10px;
  border-bottom: 1px dotted #ccc;
}

.update {
  float: right;
  background-color: blue;
  color: white;
  border: 0px;
  padding: 3px 5px;
}

.delete {
  float: right;
  background-color: red;
  color: white;
  border: 0px;
  padding: 3px 5px;
}