index.css

body{
    font-family: Arial;
    font: 100;
    align-self: center;
    
}

#main-heading{
    text-align: center;
}

.grid-Container {
    display: grid;
    grid-template-columns: 200px 150px 100px ;
    column-gap: 10px;
    row-gap: 10px;
    margin-top: 10px;
    align-items: center;
  }
#input-text,#todo-date{
    font-size: 15px;
    padding: 10px 5px;
}

.btn-todo{
    color: white;
    border: none;
    background-color: black;
    border-radius: 10px;
    padding: 15px 0px;
    outline: none;
    transition: ease-out 0.3s;
    border: 2px solid #42fb4b ;
    position: relative;
    z-index: 1;
}

.btn-todo:hover{
    color: #fff;
    cursor: pointer;
}


.btn-todo:before {
    transition: 0.5s all ease;
    position: absolute;
    top: 0;
    left: 50%;
    right: 50%;
    bottom: 0;
    opacity: 0;
    content: "";
    background-color: #42fb4b;
  }
  
  .btn-todo:hover:before {
    transition: 0.5s all ease;
    left: 0;
    right: 0%;
    opacity: 1;
    z-index: -1;
  }

.btn-delete{
    background-color: rgb(255, 0, 68);
    color: white;
    border: none;
    border-radius: 10px;
    padding: 15px 0px;
    outline: none;
    transition: ease-out 0.3s;
    box-shadow: inset 0 0 0 0 #f9e506;
}

.btn-delete:hover {
    box-shadow: inset 100px 0 0 0 #f9e506;
    color: black;
    cursor: pointer ;
}