style.css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins";
}
::selection {
  color: #ffff;
  background: rgb(61, 48, 204);
}
body {
  width: 100%;
  height: 100vh;
  padding: 10px;
  background-image: url(https://i.ibb.co/rkBVw0H/Untitled-design-1.png);
  background-repeat: no-repeat;
  background-size: cover;
  
} 
.wrapper {
  background: #fff;
  max-width: 400px;
  width: 100%;
  margin: 120px auto;
  padding: 25px;
  border-radius: 5px;
  box-shadow: 0px 10px 15px rgba(0, 0, 0, 0.1);
}
.wrapper header {
  font-size: 30px;
  font-weight: 600;
  text-align: center;
}
.wrapper .inputField {
  margin: 20px 0;
  width: 100%;
  display: flex;
  height: 45px;
}
.inputField input {
  width: 85%;
  height: 100%;
  outline: none;
  border-radius: 3px;
  border: 1px solid #ccc;
  font-size: 17px;
  padding-left: 15px;
  transition: all 0.3s ease;
}
.inputField input:focus {
  border-color: rgb(15, 67, 255);
}
.inputField button {
    
  
  
  width: 50px;
  height: 100%;
  border: none;
  color: #fff;
  margin-left: 5px;
  font-size: 21px;
  outline: none;
  background: rgb(25, 5, 255);
  cursor: pointer;
  border-radius: 3px;
  /* opacity: 0.6; */
  pointer-events: none;
  transition: all 0.3s ease;
}
.inputField button:hover{
    background: green;
}
.footer{
    font-size: 23px;
    text-align: center;
}
.footer1{
    text-align: center;
}
.footer1 button:hover {
  background: rgb(255, 69, 69);
}
.inputField button.active {
  opacity: 1;
  pointer-events: auto;
}
.wrapper .todoList {
  max-height: 250px;
  overflow-y: auto;
}
.todoList li {
  position: relative;
  list-style: none;
  margin-bottom: 8px;
  background: #f2f2f2;
  border-radius: 3px;
  padding: 10px 15px;
  cursor: default;
  overflow: hidden;
  word-wrap: break-word;
}
.todoList li .icon {
  position: absolute;
  right: -45px;
  top: 50%;
  transform: translateY(-50%);
  background: #e74c3c;
  width: 45px;
  text-align: center;
  color: #fff;
  padding: 10px 15px;
  border-radius: 0 3px 3px 0;
  cursor: pointer;
  transition: all 0.2s ease;
}
.todoList li:hover .icon {
  right: 0px;
}
.wrapper .footer1 {
  display: flex;
  width: 100%;
  margin-top: 20px;
  align-items: center;
  justify-content: space-between;
}
.footer1 button {
  padding: 6px 10px;
  border-radius: 3px;
  width: 90px;
  border: none;
  outline: none;
  color: #fff;
  font-weight: 400;
  font-size: 16px;
  margin-left: 0px;
  background: rgb(15, 67, 255);
  cursor: pointer;
  user-select: none;
  opacity: 0.6;
  pointer-events: none;
  transition: all 0.3s ease;
  margin-left: 130px;
  margin-right: 130px;
}
.footer1 button.active {
  opacity: 1;
  pointer-events: auto;
}