html {
  background: #e6e9e9;
  background-image: linear-gradient(270deg, rgb(230, 233, 233) 0%, rgb(216, 221, 221) 100%);
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: "Helvetica Neue",
    Arial,
    "Hiragino Kaku Gothic ProN",
    "Hiragino Sans",
    Meiryo,
    sans-serif;
  background: #fff;
  box-shadow: 0 0 2px rgba(0, 0, 0, 0.06);
  color: #545454;
  font-size: 15px;
  line-height: 1.5;
  margin: 0 auto;
  max-width: 360px;
  padding: 1em 1em 2em;
}

h1,h2,h3,h4,h5,h6 {
  color: #222;
  font-weight: 600;
  line-height: 1.3;
}

.btn-square-little-rich {
  position: relative;
  display: inline-block;
  padding: 0.25em 0.5em;
  text-decoration: none;
  color: #FFF;
  background: #03A9F4;
  border: solid 1px #0f9ada;
  border-radius: 4px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.2);
  width: 100px;
  height: 3em;
}

.btn-square-little-rich:active {
  border: solid 1px #03A9F4;
  box-shadow: none;
  text-shadow: none;
}

.ipaddress {
  font-size: 100%;
  width: 8em;
}

.inputText {
  font-size: 100%;
  width: 30em;
}

.noteText {
  font-size: 80%;
  color:gray;
}

table th {
  display: table-cell;
  vertical-align: inherit;
  font-weight: normal;
  font-size: 80%;
  text-align: right;
  padding-right: 5px;
  height: 2em;
}

fieldset {
  border-width: 2px;
  border-style: solid;
  border-color: threedface;
  border-image: initial;
}

footer{
  width: 100%;
  font-size: x-small;
/*
  background-color: #89c7de;
  color: #fff;
*/
  text-align: center;
  position: absolute;/*←絶対位置*/
  bottom: 0; /*下に固定*/
  padding: 0 0 10px 0;
}

#menu {
  min-height: 90vh;
  position: relative;/*←相対位置*/
  text-align: center;
}