.content {
    background: white;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    /* overflow-y: scroll;*/
}
.header {
    background-color: #3389CA;
    color: white;
    width: 100%;
    height: 40px;
    padding-left: 5px;
    font-size: 12pt;
    flex-basis: 1;
    align-items: flex-baseline;
    display: flex;
    flex-direction: row;
    align-items: center;
}
.message_box {
    width: 100%;
    font-size: 12pt;
    margin: 5px 0;
    display: flex;
    flex-direction: column;
}
.message {
    width: auto;
    font-size: 12pt;
    color: white;
    padding: 0 10px;
    display: flex;
    flex-direction: row;
}
.submit {
    width: 120px;
    border-radius: 5px;
    border-width: 1px;
    margin: 10px 10px 10px 0;
    height: 30px;
    font-size: 10pt;
}
.gridarea {
    width: 100%;
    /*height: 600px;*/
    display: flex;
    flex: 1 1;
    flex-direction: column;
}
.copyright {
    width: 100%;
    height: 20px;
    margin: 0 10px 10px 10px;
    font-size: 12pt;
    display: flex;
    flex-direction: row;
}
.footer {
    background-color: #3389CA;
    color: skyblue;
    font-size: 14pt;
    width: 100%;
    height: 40px;
    padding-left: 10px;
    font-size: 10pt;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: left;
}
.nav-list {
    line-height: 100px;
    float: left;
    list-style: none;
}
.nav-list-item {
  list-style: none;
  display: inline-block;
  margin: 0 20px;
}
.nav-list-item a {
    color: white;
    text-decoration: none;
}
.nav-list-item a:hover {
    color: skyblue;
    cursor: pointer;
    /*font-size: 1.1em;/*文字サイズ2倍*/
}