body{
  margin: 0;
  padding: 0;
  background-color: #f3f6f9;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  flex-direction: column;
}
.wrap{
  padding-top: 30px;
  width: 100%;

}
.box-outer{
  flex-direction: column;
}
.btn-wrap{
  font-size: 16px;
  background-color: rgba(17, 84, 160, 0.788);
  padding: 12px 25px;
  color: #fff;
  display: inline-flex;
  text-decoration: none;
  margin-top: 15px;
  margin-bottom: 15px;
  border:none;
  outline: none;
}
.btn-wrap:hover{
  color: #fff;
  text-decoration: none;
}
.content-wrap h2{
  margin-bottom: 20px;
}
.content-wrap h3{
  margin-bottom: 15px;
}
.src-preview{
  position: fixed;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.50);
  left: 0;
  top: 0;
  display: none;
}
.src-preview.show{
  display: block;
}
.src-preview img{
  max-width: 100%;
}
.src-preview .screenshot{
  background-color: #fff;
  width: 70%;
  aspect-ratio: 16/9;
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50% , -50%);
}
#close-btn{
  position: absolute;
  right: -15px;
  font-size: 18px;
  z-index: 1;
  cursor: pointer;
}