html,
body {
  height: 100%;
}

body {
  padding-top: 40px;
  padding-bottom: 40px;
  background-color: #f5f5f5;
}

textarea {
    width: 100%;
    resize: none;
    height: 1.3em;
    border: 1px inset gray;
    margin: 0px;
    font-size: 18px;

    border-radius:10px;
    box-shadow: none;
    padding: 2px 8px;
}

.row-3 {
    height: calc( 1.4em * 1 );
    line-height: 1.4;
}

.btn--orange,
button.btn--orange {
  color: #fff;
  background-color: #eb6100;
  width: 100%;
}
.btn--orange:hover,
button.btn--orange:hover {
  color: #fff;
  background: #f56500;
  /* width: 70%; */
}

/*
h2 {
  position: relative;
  padding: 1rem 2rem calc(1rem + 10px);
  background: #0c5dac;
  color: #ffffff;
}

h2:before {
  position: absolute;
  top: -7px;
  left: -7px;
  width: 100%;
  height: 100%;
  content: '';
  border: 4px solid #000;
}
*/

h4 {
  border-bottom: 6px double #000;
}

.heading10 {
    position: relative;
    padding-top: 30px;
    font-size: 32px;
    border-bottom: 1px solid rgba(5,62,98,1);
}

.heading10 span {
    position: relative;
    z-index: 2;
}

.heading10::before {
    content: attr(data-en);
    position: absolute;
    top: 0px;
    left: 0;
    color: rgba(5,62,98,0.2);
    font-size: 24px;
    text-transform: uppercase;
    z-index: 1;
}

/* テーブルのキャプション調整 */
caption {
    font-weight: bold;
    caption-side: top;
    text-align: center;
}