php_pracownia-programowania/style/tasks.css

.header {
  overflow: hidden;
  background-color: #000;
  padding: 20px 10px;
}

.header a {
  float: left;
  color: #ddd;
  text-align: center;
  padding: 12px;
  text-decoration: none;
  font-size: 18px; 
  line-height: 25px;
  border-radius: 4px;
}

.header a.logo {
  font-size: 25px;
  font-weight: bold;
}

.header a:hover {
  background-color: #ddd;
  color: black;
}

.header a.active {
  background-color: #fb2525;
  color: white;
}

.header a.active:hover {
    cursor: pointer;
    background: #ffc107;
    color: #000;
}

.header-right {
  float: right;
}

.addform {
  overflow: hidden;
  background-color: black;
  padding: 0px 10px;
}

.addform input {
    width: 100%;
    margin-bottom: 20px;
}

.addform input[type="text"] {
    border: none;
    border-bottom: 1px solid #fff;
    background: transparent;
    outline: none;
    height: 40px;
    color: #fff;
    font-size: 16px;
	text-align: center;
}

.addform input[type="submit"] {
	border: none;
    outline: none;
    height: 40px;
    background: #fb2525;
    color: #fff;
    font-size: 18px;
    border-radius: 20px;
}

.addform input[type="submit"]:hover {
    cursor: pointer;
    background: #ffc107;
    color: #000;
}

.done-button {
	display: inline-block;
	font-size: 0.8em;
	background-color: #d9dfe1;
	color: #363639;
	padding: 2px 4px;
	border: 0;
	opacity: 0.4;
}

.delete-button {
	display: inline-block;
	font-size: 0.8em;
	background-color: #FF6666;
	color: #CC0000;
	padding: 2px 4px;
	border: 0;
	opacity: 0.4;
}

.todo {
	left: 10%;
	position: absolute;
	background-color: #fff;
	margin: 20px auto;
	width: 100%;
	max-width: 500px;
	padding: 20px;
	border-radius: 4px;
	box-shadow: 3px 3px 0 rgba(0, 0, 0, .1);
	box-sizing: border-box;
}

.done {
	right: 10%;
	position: absolute;
	background-color: #fff;
	margin: 20px auto;
	width: 100%;
	max-width: 500px;
	padding: 20px;
	border-radius: 4px;
	box-shadow: 3px 3px 0 rgba(0, 0, 0, .1);
	box-sizing: border-box;
}

.tasks {
	margin:0;
	padding0;
	list-style-type: none;
}

.tasks li {
	border:0;
	border-bottom:1px dashed #ccc;
	padding: 15px 0;
}

@media screen and (max-width: 999px) {
.todo {
	position: relative;
	left: 0.5%;
	top: 5%;
	background-color: #fff;
	margin: auto;
	width: 90%;
	max-width: 500px;
	padding: 20px;
	border-radius: 4px;
	box-shadow: 3px 3px 0 rgba(0, 0, 0, .1);
	box-sizing: border-box;
}

.done {
	position: relative;
	left: 0.5%;
	top: 5%;
	background-color: #fff;
	margin: 20px auto;
	width: 90%;
	max-width: 500px;
	padding: 20px;
	border-radius: 4px;
	box-shadow: 3px 3px 0 rgba(0, 0, 0, .1);
	box-sizing: border-box;
}

}