body {  
  background-color: #04473e;
}

.logo-sec img{
  height: 100vh;
  width: 100%;
}
.d-flex {
  display: flex;
  /* height: 100vh; */
  text-align: center;
  align-items: center;
  flex-direction: column;
}
.cmng-sn h2{
 color: #fff;
 text-transform: uppercase;
}