html {
  font-size: calc(15px + 0.5vw);
  font-family: 'Nunito Sans', sans-serif;
  line-height: 1.15;
}

body {
  margin: 0;
  padding: 0;
}

img,
picture,
video {
  max-width:100%;
}

.bg_img {
  display: block;
  background: url("../website assets/DSC_3893_c.jpg") center/cover local;
  width: 100%;
  height: 100vh;
  line-height: 0;
  overflow: hidden;
}

.header_text {
  margin: calc(19vh) auto 0;
  font-size: 50px;
  font-size: calc(10px + 2vw);
  color: white;
  text-align: center;
  width: 80%;
  padding: 10px;
  line-height: normal;
}

h2 {
  font-size: calc(1.2rem + 0.3vw);
  text-align: left;
  margin: 0;
  padding: 20px 20px 0;
}

h3 {
  font-size: calc(20px + 0.3vw);
  text-align: left;
  margin: 10px 10px 0;
  padding: 10px 10px 0;
}

p {
  font-size: 1rem;
  text-align: left;
  margin: 10px 10px 0;
  padding: 10px;
}

nav ul {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100px;
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #f5b147;
}

nav li {
  font-size: 22px;
  display: inline;
  float: right;
}

nav img {
  padding: 13px 7px;
}

nav a {
  display: block;
  padding: 35px 15px;
  text-align: center;
}

nav a:link {
  color: white;
  text-decoration: none;
}

nav a:visited{
  color: white;
}

nav a:hover {
  color: #782a39;
}

nav a:active {
  color: #782a39;
}

article {
  padding: 10px;
  margin: 10px;
  flex: 500px;
}

.company_bio {
  display: flex;
  margin: 10px;
  padding: 10px;
  flex-flow: row wrap;
}

.company_bio h3 {
  font-size: calc(20px + 1.2vw);
}

.company_bio p {
  font-size: 1.2rem;
}

.sub_bio {
  margin: 0;
  padding: 0;
  flex: 100px;
}

.sub_bio h3 {
  font-size: calc(20px + 0.3vw);
}

.sub_bio p {
  font-size: 0.9rem;
}

@media (min-width: 600px) and (max-width: 1136px) {
  .sub_bio:nth-of-type(2) {
    flex: 2 100px;
  }
}

@media (max-width: 600px) {
  .sub_bio {
    flex: 600px;
  }
}

.bio {
  display: flex;
  flex-flow: row wrap;
}

.bio_image {
  position: static;
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 90%;
  height: auto;
}

.about {
  margin: 100px 10px 10px;
  padding: 30px 10px 10px;
}

.portrait {
  width: auto;
  height: 350px;
}

.about_img {
  padding: 0;
  margin: 0 0 -7px 0;
  float: left;
  position: static;
}

.yunghsin {
  padding: 0;
  margin: 0;
}

@media (max-width: 700px) {
  .about_img {
    float: none;
  }
}

.read_more {
  display: inline-block;
  padding: 0 10px;
  margin: 0 10px;
  font-size: 0.8rem;
  font-weight: bold;
}

.read_more a:link {
  color: #7498b5;
  text-decoration: none;
}

.read_more a:visited {
  color: #7498b5;
}

.read_more a:hover {
  color: #782a39;
}

.read_more a:active {
  color: #782a39;
}