main.css

/* Starting css */

@import url("https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap");

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: "Roboto", sans-serif;
}

body {
  margin-top: 50px;
  background-color: #352f5b;
  color: #fff;
}

/* Todo List CSS */
.container {
  width: 800px;
  margin: 0 auto;
  text-align: center;
}

.container h1 {
  margin-bottom: 25px;
  font-size: 2.6rem;
}

.show-box {
  border: 1px solid #fff;
  border-radius: 5px;
  margin-top: 20px;
  height: 350px;
  overflow-y: scroll;
}

.show-box::-webkit-scrollbar {
  width: 6px;
}

/* Track */
.show-box::-webkit-scrollbar-track {
  background: #f1f1f1;
}

/* Handle */
.show-box::-webkit-scrollbar-thumb {
  background: #888;
}

/* Handle on hover */
.show-box::-webkit-scrollbar-thumb:hover {
  background: #555;
}

.input-box {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.input-box input {
  color: #fff;
  border: none;
  background: rgba(0, 0, 0, 0.2);
  padding: 14px 24px;
  font-size: 1.4rem;
  border-radius: 5px;
}

.input-box button {
  font-size: 1.4rem;
  padding: 14px 20px;
  border: none;
  border-radius: 5px;
}

ol {
  width: 600px;
  margin: 0 auto;
  padding: 30px 20px;
  display: flex;
  align-items: center;
  flex-direction: column;
  gap: 10px;
}

ol li {
  background: #423a6f;
  border-radius: 20px;
  color: #fff;
  text-align: left;
  width: 100%;
  padding: 20px;
  font-size: 1.4rem;
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

ol li .btn-container {
  display: flex;
  align-items: center;
  gap: 16px;
}

ol li .btn-container button {
  background: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 20px;
  cursor: pointer;
}

ol li input {
  padding: 0 10px;
}

/* footer Style */
footer {  
  margin-top: 30px;
  font-size: 1.2rem;
  text-align: center;
}