body {
    background-color: #e8e8e8;
    background-image: url(../images/contact_y_copie.png);
    background-size: contain;
}

.container {
    color: white;
    font-weight: 600;
    margin: 100px 10% !important;
 }

.container .btn {
    background-color: #d6a840;
    border: none;
 }

.container h1 {
    color: #d6a840;
    font-weight: 600;
 }

.form-control {
    width: 60%;
 }


 .btn {
   position: relative;
   overflow: hidden;
   transition: all 0.3s ease;
   z-index: 1;
 }
 
 .btn:hover {
   background-color: #006cad !important;
   color: #d6a840 !important;
   border-color: #67ca15 !important;
 }
 
 .btn::before {
   content: "";
   position: absolute;
   left: 0;
   top: 0;
   width: 100%;
   height: 100%;
   background: rgba(0, 108, 173, 0.9);
   transform: translateX(-100%) scale(0);
   transition: transform 0.5s;
   z-index: -1;
 }
 
 .btn:hover::before {
   transform: translateX(0) scale(4);
   animation: wave 0.7s ease;
 }
 
 @keyframes wave {
   0% {
     transform: translateX(-100%);
   }
   100% {
     transform: translateX(100%);
   }
 }