style.css

html,body {
    height: 100%;
    width: 100%;
    background-color: #FFFFFF;
  background-image: linear-gradient(0deg, #FFFFFF 0%, #6284FF 50%, #FF0000 100%);
    margin:0;  
    padding:0;
    box-sizing:border-box;
  
  }

.container {
  max-width: 400px;
  margin: 0 auto;
}

h1 {
 text-align:center;
}

.input-container {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}

#todoInput{
 color: #6912d3; 
}

input {
  font-size: 32px;
display: flex;
    padding: 5px;
    margin-top: 6rem;
    width: 70rem;
  height: 4rem;
   border:2px solid green;
  border-radius: 20px;
}

#addTodoBtn {
    margin-top: 113px;
    width: 100px;
    height: 43px;
    border-radius: 10px;
    font-weight: bold;
    cursor: pointer;
    background-color: #007bff;
    text-align: center;
}

#addTodoBtn:hover{
      background-image: linear-gradient(to right, #2d16a2 0%, #F4D03F 51%, #d03e25 100%);
  }
  

#notodos {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.task-item {
  display: flex;
  align-items: center;
  padding: 10px;
  background-color: #ddbbbb;
 border:2px solid green;
  border-radius: 20px;
   font-size: 32px;
  margin-bottom: 5px;
  width: 66rem;
}

.task-item span {
  flex-grow: 1;
}

.btn-remove {
    position:relative;
  font-size:45px;  
    color:black;
    background-color:transparent;
    right: 20px;
    border-radius:45px;
    width:80px;
}

#noTodosMessage {
    display: none;
    margin-top: 6rem;
    font-size: 50px;
    text-align: center;
    border: 2px solid green;
    border-radius: 33px;
}