body {
  margin: 0;
  min-width: 250px;
}

h2{
 margin:5px;
}

table {
  width: 100%;
}
td {
  text-align: left;
}

table tr {
  cursor: pointer;
  position: relative;
  padding: 12px 8px 12px 40px;
  list-style-type: none;
  background: #e8f5e8;
  font-size: 18px;
  transition: 0.2s;

  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

tr td:nth-child(odd) {
  background: #d4edda; 
}

tr td input[type="checkbox"]:hover {
  background: #c3e6cb;
}

tr td input[type="checkbox"].checked {
  background: #28a745;
  color: #fff;
  text-decoration: line-through;
}

tr td input[type="checkbox"].checked::before {
  content: '';
  position: absolute;
  border-color: #fff;
  border-style: solid;
  border-width: 0 2px 2px 0;
  top: 10px;
  left: 16px;
  transform: rotate(45deg);
  height: 15px;
  width: 7px;
}

.close {
  position: absolute;
  right: 0;
  top: 0;
  padding: 12px 16px 12px 16px;
}

.close:hover {
  background-color: #dc3545;
  color: white;
}

.header {
  background-color: #4caf50;
  padding: 30px 40px;
  color: white;
  text-align: center;
}

.header:after {
  content: "";
  display: table;
  clear: both;
}

input[type="text"]{
  margin: 0;
  border: none;
 /* border-radius: 0;*/
  padding: 10px;
  /*float: left;
  width: 75%;
  */
  font-size: 16px;
}

input[type="button"]{
  margin: 0;
  border: none;
 /* border-radius: 0;*/
  padding: 10px;
  /*float: left;
  width: 75%;
  */
  font-size: 16px;
}
input[type="checkbox"]{
  margin: 0;
  border: none;
  border-radius: 5px;
  padding: 10px;
  /*float: left;
  width: 75%;
  */
  font-size: 16px;
}
.addBtn {
  padding: 10px;
 width: 25%;
  border-radius: 1;

  background: #c3e6cb;
  color: #155724;
  text-align: center;
  font-size: 12px;
  cursor: pointer;
  transition: 0.3s;
 
}

.addBtn:hover {
  background-color: #a8d5ba;
}
select{
    font-size: 12px;
     padding: 10px;
     border-radius: 5px;
}