.header {
  position: relative;
  background: url(pexels-jessbaileydesign-1097930.jpg) center no-repeat;
  -webkit-background-size: cover;
          background-size: cover;
          min-height: 700px;
          

}

.header:after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,.5);
  z-index: 2;
}

.inner {
  position: relative;
  z-index: 3;
  color: #fff;
  text-align: center;
  padding: 50px;  
}

.inner h1 {
  
  font-size: 50px; 
   margin-bottom: 20px;
}

.inner h4 {
 color: aliceblue;
 opacity: 0.7;
 margin-bottom: 20px;
  
}

.btn-main {
    display: inline-block;
    padding: 10px 35px ;
    font-size: 18px;
    border: none;
    background-color: rgb(248, 208, 8);
    text-transform: uppercase;
    border-radius: 5px;
    margin-bottom: 30px;
    font-weight: 700;
    box-shadow: 0 15px 20px rgba(0,0,0,.7) ;
    transition: all cubic-bezier(0.95, 0.05, 0.795, 0.035);
     text-decoration: none;
     color: rgb(2, 32, 120);
}

.btn-main:hover{
 box-shadow: 0 15px 20px rgba(210, 180, 8,.7) ;
 transform: scale(1.15);
 color: rgb(2, 32, 120);
}