style.css

header {
    position: fixed;
    height: 50px;
    width: -webkit-fill-available;
    background-color: khaki;
}

main {
    display: flex;
    flex-wrap: wrap;
    align-content: space-around;
    justify-content: center;
    height: 1000px;
    background-color: snow;
}

footer {
    height: 50px;
    width: -webkit-fill-available;
    background-color: khaki;
}
body {
    margin: 0px;
}

#printPaneToDoList {
    display: flex;
    padding: 5%;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: stretch;
    align-content: space-around;
    height: 40%;
    width: 30%;
    border-radius: 30px;
    background-color: powderblue;
    box-shadow: 0 30px 100px rgb(15 16 16 / 15%);
}

h1 {
    color: snow;
    text-align: center;
    font-family: sans-serif;
    box-shadow: 0 0px 80px rgb(15 15 16 / 15%);
}

input {
    height: 40px;
    border-color: snow;
    border-width: 0px;
    border-radius: 3px;
    box-shadow: 0 30px 100px rgb(15 16 16 / 15%);
}

button {
    width: 40%;
    height: 40px;
    background-color: snow;
    border-radius: 3px;
    border-width: 0px;
    font-family: sans-serif;
    font-size: 20px;
    font-weight: bold;
    color: powderblue;
}

#toDoContayner {

}

.text_elem {
    padding: 1%;
    flex-grow: 1;
}

.item {
   visibility: hidden;
    display: flex;
}

img {
    margin: -10px;
    width: 35px;
    height: 48px;
}

.grow_elem {
    margin: 5px;
    border-radius: 15px;
    height: 30px;
    width: 30px;
}

#positButtonFeedback {
    background-color: powderblue;
    border-color:  snow;
    color: powderblue;
    background-image: -webkit-linear-gradient(45deg, snow 50%, transparent 50%);
    background-image: linear-gradient(45deg, snow 50%, transparent 50%);
    background-position: 100%;
    background-size: 400%;
    -webkit-transition: background 300ms ease-in-out;
    transition: background 300ms ease-in-out;
}

#positButtonFeedback:hover {
    background-position: 0;
}

#negatButtonFeedbac {
    background-color: powderblue;
    border-color: snow;
    color: powderblue;
    background-image: -webkit-linear-gradient(45deg, snow 50%, transparent 50%);
    background-image: linear-gradient(45deg, snow 50%, transparent 50%);
    background-position: 100%;
    background-size: 400%;
    -webkit-transition: background 300ms ease-in-out;
    transition: background 300ms ease-in-out;
}

#negatButtonFeedbac:hover {
    background-position: 0;
}