.close-button {
    width:100px;
    height:100px;
    right:0;
    position:relative;
    display:block;
    float: right;
    margin-top:-150px;
    margin-right: 10px;
    border-radius:10px;
    text-indent:-9999px;
    box-shadow: 0px 10 10px 10px rgba(0, 0, 0, 0.25);
    background: #111111;
    z-index: 200;
}
.close-button:before,
.close-button:after {
    width:55%;
    height:2px;
    top:48%;
    position:absolute;
    content: '';
    background: #ffffff;
    left: 22%;
    -webkit-transform: rotate(-45deg);
    -moz-transform: rotate(-45deg);
    -ms-transform: rotate(-45deg);
    -o-transform: rotate(-45deg);
    transform: rotate(-45deg);
    -webkit-transition: all 0.3s ease-out;
    -moz-transition: all 0.3s ease-out;
    -ms-transition: all 0.3s ease-out;
    -o-transition: all 0.3s ease-out;
    transition: all 0.3s ease-out;
}
.close-button:after {
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
    -webkit-transition: all 0.3s ease-out;
    -moz-transition: all 0.3s ease-out;
    -ms-transition: all 0.3s ease-out;
    -o-transition: all 0.3s ease-out;
    transition: all 0.3s ease-out;
}
.close-button:hover:before {
    top:29%;
    -webkit-transform: rotate(135deg);
    -moz-transform: rotate(135deg);
    -ms-transform: rotate(135deg);
    -o-transform: rotate(135deg);
    transform: rotate(135deg);
    left: 18%;
}
.close-button:hover:after {
    top:67%;
    -webkit-transform: rotate(-135deg);
    -moz-transform: rotate(-135deg);
    -ms-transform: rotate(-135deg);
    -o-transform: rotate(-135deg);
    transform: rotate(-135deg);
    left: 18%;
}