body {
    font-family:sans-serif;
    width:50%;
    margin-left:auto;
    margin-right:auto;
    background-color: #ddd;
}

p {
    font-size:medium;
    font-family:sans-serif;
    font-weight:normal;
}

/* navigation */
ul {
    list-style-type:none;
    overflow: hidden;
    background-color:none;
    image-orientation: left;
}

li {
    float: right;
}

li a {
    display: block;
    color: grey;
    text-align: center;
    padding: 18px 16px;
    text-decoration: none;
}

li a:hover {
    background-color: #111;
}

li {
    border-right: 1px solid #bbb;
    border-left: 1px solid #bbb;
}
/* navigaton end */

/* comment section */
.post-box{
    width: 815px;
    padding: 20px;
    margin-bottom: 4px;
    background-color: #fff;
    border-radius: 4px;
    position: relative;
}
.comment-box p{
    font-family: arial;
    font-size: 14px;
    line-height: 16px;
    color: #282828;
    font-weight: 100;
}
/* edit button form */
.edit-form button{
    width:40px;
    height: 20px;
    color: #282828;
    background-color: #fff;
    opacity: 0.7;
}

.edit-form{
    position: absolute;
    top: 0px;
    right: 70px;
}

.edit-form button:hover{
    opacity: 1;
}
/* delete button form */
.delete-form button{
    width:65px;
    height: 20px;
    color: #282828;
    background-color: #fff;
    opacity: 0.7;
}

.delete-form{
    position: absolute;
    top: 0px;
    right: 0px;
}

.delete-form button:hover{
    opacity: 1;
}
*.warning {
    color:red;
}