.masthead {
  position: relative;
  width: 100%;
  height: auto;
  min-height: 35rem;
  padding: 15rem 0;
  background: -webkit-gradient(linear, left top, left bottom, from(rgba(22, 22, 22, 0.1)), color-stop(75%, rgba(22, 22, 22, 0.5)), to(#161616)), url("../img/sub-image-01.jpg");
  background: linear-gradient(to bottom, rgba(22, 22, 22, 0.1) 0%, rgba(22, 22, 22, 0.5) 75%, #161616 100%), url("../img/bg-masthead-top.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: scroll;
  background-size: cover;
}

body {
  font-family: '游明朝体', 'YuMincho', 'ヒラギノ明朝 Pro W3', 'Hiragino Mincho Pro', 'san-self';
  letter-spacing: 0.0625em;
}

.masthead h1 {
  font-family: 'Dancing Script', cursive;
  font-size: 4.5rem;
  font-weight: bold;
  line-height: 6.8rem;
  letter-spacing: 0.6rem;
  background: gold;
  /*-webkit-text-stroke: goldenrod 1pt;*/
  -webkit-text-fill-color: transparent;
  -webkit-background-clip: text;
}

.subhead h1 {
  font-family: 'Dancing Script', cursive;
  font-size: 3.5rem;
  font-weight: bold;
  line-height: 5.8rem;
  letter-spacing: 0.6rem;
  background: gold;
  /*-webkit-text-stroke: goldenrod 1pt;*/
  -webkit-text-fill-color: transparent;
  -webkit-background-clip: text;
}

.about-section h2 {
  font-size: 2.5rem;
}

.bg-black {
  background-color: #fff !important;
}

/* 追加 */
.projects-section1 {
  padding: 5rem 0;
}

.m-t-150 {
  margin-top: 150px;
}

.m-b-150 {
  margin-bottom: 150px;
}

.p-lr-15 {
  padding-left: 15px;
  padding-right: 15px;
}

.pt-15 {
  padding-top: 15px;
}

.btn-default {
  color: #64a19d;
}

.btn-default:hover,
.btn-default:focus {
  color: #4f837f;
}

div.is-error.formError {
  opacity: 0.87;
  background: #FFEB3B;
  position: relative;
  color: #171616;
  min-width: 120px;
  font-size: 11px;
  border: 2px solid #ddd;
  box-shadow: 0 0 6px #000;
  -moz-box-shadow: 0 0 6px #000;
  -webkit-box-shadow: 0 0 6px #000;
  -o-box-shadow: 0 0 6px #000;
  padding: 4px 10px 4px 10px;
  border-radius: 6px;
  -moz-border-radius: 6px;
  -webkit-border-radius: 6px;
  -o-border-radius: 6px;
}