* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;

}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: rgb(201, 226, 238);
  color: white;
  font-size: 1.1rem;
  line-height: 1.6rem;

}
h1, h2, h3, h4 {
  line-height: 3rem;
}

a {
  text-align: none;
  color: white;
}

ul{
  list-style: none;
}

img {
  width: 100%;
}

/* Header*/

.main-header {
   width: 100%;
   height: 100vh;
   mask-position: relative;
   background: url(../images/arn-background02.jpg)no-repeat center center/cover;
}

.main-header::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1;

}

.header-top {
  position: relative;
  height: 100px;
  z-index: 2;
  background-color: rgb(223, 232, 238);
}

.header-top .logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);

}

.header-top >img {
  width: 230px;
  height: 75px;
  position: relative;
  top: 20%;
  left: 50%;
  transform: translate(-50%, -50%);

}

.flex-item-one {
  display: flex;
  flex-direction: column;
  color: red;
}


.flex-item-two {
  display: flex;
  letter-spacing: 1px;
  position: relative;
  margin: auto;
  
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  margin-top: 9rem;
  z-index: 2;

}

.inside-logo >img {
  width: 400px;
  height: 400px;

}

.flex-item-three {
  display: flex;
  flex-direction: column;
  color: yellow;
}