header {
    position: fixed;
    top: 0;
    left: 0;
    height: 80px;
    width: 100%;
    background-color: #545454;
    box-shadow: 0 0 5px 2px #fff;
    z-index: 999;
    display: block;
}

#header-column {
    display: flex;
    justify-content: space-between;
    z-index: 999;
}

header img {
    width: auto;
    height: 50px;
    border-radius: 5px;
    padding: 5px 10px;
    background-color: #fff;
    box-shadow: 0px 0px 5px 2px #c5c5c5 inset;
    margin: 10px 20px;
}

.header_text,
.WStext {
    display: none;
}

#side-icon {
    position: relative;
    width: 60px;
    height: 60px;
    cursor: pointer;
    margin: 10px 10px;
    border-radius: 5px;
}

#side-icon span {
    display: inline-block;
    transition: all .4s ease;
    position: absolute;
    right: 25%;
    height: 3px;
    border-radius: 2px;
    background-color: #ffffff;
    width: 50%;
}

#side-icon span:nth-of-type(1) {
    top: 21px;
}

#side-icon span:nth-of-type(2) {
    top: 28.5px;
}

#side-icon span:nth-of-type(3) {
    top: 36px;
}

#side-icon.open span:nth-of-type(1) {
    top: 22px;
    transform: translateY(6px) rotate(-45deg);
}

#side-icon.open span:nth-of-type(2) {
    opacity: 0;
}

#side-icon.open span:nth-of-type(3) {
    top: 34px;
    transform: translateY(-6px) rotate(45deg);
}

/*sidebar*/
#sideBody {
    display: block;
    position: fixed;
    box-sizing: border-box;
    top: 80px;
    width: 100vw;
    height: 100%;
    background-color: #b8b8b8;
    opacity: 0.9;
    overflow: hidden;
    overflow-y: scroll;
    z-index: 99;
    display: none;
}

#sideBody.open {
    top: 80px;
}

#side-list {

    padding: 0;
    margin: 20px 0 0 0;
}

#side-list li {
    list-style: none;
    margin-left: 0;
    margin: 5px 15px 0 15px;
    font-size: large;
    background-color: #ffffff;
    box-shadow: 0 0 5px 2px #979797;
    border-radius: 3px;
}

#side-list li a {
    display: block;
    padding: 15px 20px;
}

.noLink {
    display: block;
    padding: 15px 20px;
}

.kensaku-methods {
    padding-left: 20px;
}

header a:visited,
header a:link {
    color: #000000;
}

header a:hover {
    color: #ff2424;
}

a:hover {
    font-weight: bold;
}