body {
    margin: 0;
}

#wrapper {
    min-width: 250px;
    max-width: 3000px;
    width: 90%;
    margin:0 auto;
}

#linn {
    width: 45%;
    margin: 2%;
    float: left;
}

#mert {
    width: 45%;
    margin: 2%;
    float: right;
}

@media (max-width : 800px) {
    #linn {
        width: 90%;
        margin: 20px;
        margin-right: 0px;
        float: top;
    }
    #mert {
        width: 90%;
        margin: 20px;
        margin-left: 0px;
        float: bottom;
    }
}

/* Include the padding and border in an element's total width and height */
* {
    box-sizing: border-box;
    font-family: Helvetica, Arial, sans-serif;
}

/* Remove margins and padding from the list */
ul {
    margin: 0;
    padding: 0;
}

/* Style the list items */
ul form li {
    cursor: pointer;
    position: relative;
    padding: 12px 8px 12px 40px;
    list-style-type: none;
    background: #eee;
    font-size: 18px;
    transition: 0.2s;
    word-break: break-all;

    /* make the list items unselectable */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Set all odd list items to a different color (zebra-stripes) */
ul form li:nth-child(odd) {
    background: #f0f0f0;
}
ul form li:nth-child(even) {
    background: #dbdbdb;
}

/* Darker background-color on hover */
ul form li:hover {
    background: #ddd;
}

/* When clicked on, add a background color and strike out text */
ul form li.checked {
    background: #888;
    color: #fff;
    text-decoration: line-through;
    word-break: break-all;
}

/* Add a "checked" mark when clicked on */
ul form li.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;
    word-break: break-all;
}

/* Style the close button */
.close {
    width: 10%;
    height: 100%;
    position: absolute;
    right: 0;
    top: 0;
    /*padding: 12px 16px 12px 16px;*/
}

#mert .close:hover {
    background-color: #128a02;
    color: white;
}

#linn .close:hover {
    background-color: #F2C2A0;
    color: white;
}

/* Style the header */
#linn .header {
    border-radius: 10px 10px 0px 0px;
    background-color: #F2C2A0;
    padding: 30px 40px;
    color: black;
    text-align: center;
}
#mert .header {
    border-radius: 10px 10px 0px 0px;
    background-color: #128a02;
    padding: 30px 40px;
    color: white;
    text-align: center;
}

/* Clear floats after the header */
.header:after {
    content: "";
    display: table;
    clear: both;
}

/* Style the input */
input {
    margin: 0;
    border: none;
    border-radius: 0;
    width: 75%;
    padding: 10px;
    float: left;
    font-size: 16px;
    height: 40px;
}
#mert-myInput, #linn-myInput {
    margin-top: 5px;
}

/* Style the "Add" button */
.addBtn {
    padding: 10px;
    margin-top: 5px;
    width: 25%;
    height: 40px;
    background: #d9d9d9;
    color: #555;
    float: left;
    text-align: center;
    font-size: 16px;
    cursor: pointer;
    transition: 0.3s;
    border-radius: 0;
}

.addBtn:hover {
    background-color: #bbb;
}