body {
    width: 100%;
    height: 800px;
    padding: 0px;
    margin: 0px;
    background-image: url(img/crumpled-2537807_1920.jpg);
}

/* Titre */
h1 {
    color: #111;
    font-family: 'Helvetica Neue', sans-serif;
    font-size: 5em;
    font-weight: bold;
    letter-spacing: -1px;
    line-height: 1em;
    text-align: center;
}

/* Input text + button */
#itembox{
    padding-left: 10em;
}

/* Input text */
#task {
    width: 50em;
    box-sizing: border-box;
        display: inline-block;
        -webkit-box-sizing: content-box;
        -moz-box-sizing: content-box;
        box-sizing: content-box;
        padding: 10px 20px;
        border: 1px solid #b7b7b7;
        -webkit-border-radius: 3px;
        border-radius: 3px;
        font: normal 16px/normal "Trebuchet MS", Helvetica, sans-serif;
        color: rgba(0,142,198,1);
        -o-text-overflow: clip;
        text-overflow: clip;
        background: rgba(252,252,252,1);
        -webkit-box-shadow: 2px 3px 22px 0 rgba(0,0,0,0.2) inset;
        box-shadow: 2px 3px 22px 0 rgba(0,0,0,0.2) inset;
        text-shadow: 1px 1px 0 rgba(255,255,255,0.66) ;
        -webkit-transition: all 200ms cubic-bezier(0.42, 0, 0.58, 1);
        -moz-transition: all 200ms cubic-bezier(0.42, 0, 0.58, 1);
        -o-transition: all 200ms cubic-bezier(0.42, 0, 0.58, 1);
        transition: all 200ms cubic-bezier(0.42, 0, 0.58, 1);
      }
  
  li {
    text-align: left;
    font-family: 'Raleway', sans-serif;
    font-size: 2em;
    list-style: none;
    margin: 0;
  }

  /* Barre la tâche au survol */
  li:hover {
    text-decoration: line-through;
  }

  /* Button */
  #btn {
	box-shadow:inset 0px 1px 0px 0px #fff6af;
	background:linear-gradient(to bottom, #ffec64 5%, #ffab23 100%);
	background-color:#ffec64;
	border-radius:6px;
	border:1px solid #ffaa22;
	display:inline-block;
	cursor:pointer;
	color:#333333;
	font-family:"Trebuchet MS", Helvetica, sans-serif;
	font-size:15px;
	font-weight:bold;
	padding:10px 16px;
	text-decoration:none;
	text-shadow:0px 1px 0px #ffee66;
}
.btn:hover {
	background:linear-gradient(to bottom, #ffab23 5%, #ffec64 100%);
	background-color:#ffab23;
}
.btn:active {
	position:relative;
	top:1px;
}

/* Media queries */
@media all and (min-width: 360px) and (max-width:1280px){
  #itembox {
    padding-left:1em;
  }
  #task {
    display: flex;
    flex-flow: row wrap;
    width:80%;
  }
  }