body, html {
    height: 100%;
    color: #777;
    line-height: 1.8;
    background-color: rgb(25, 23, 27);
} 
header {
    height: 100%;
    background-image: url('img/cover.jpg');
    background-position: center;
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.70;
}
nav {
    background-color: #6B6273;
    position: fixed;
    top: 0px;
	width:100%;
}
nav ul {
    font-size: 20px;
	margin: 0;
	padding: 0;
	display:flex;
	flex-direction: row;
	justify-content: center;
}
nav ul li {
    list-style: none;
}
nav ul li {
    color: aliceblue;
	padding: 5px;
	font-size: 20px;
}
nav ul a:hover {
    background-color: black;
    text-decoration: none;
	color: black;
}  
.branding {
    text-align: center;
    font-size: 1.6em;
    font-weight: 1000;
    background-color: black;
    padding-left: 10px;
    padding-right: 10px;
    color: white;
    letter-spacing: 8px;
    font-family: 'Signika', sans-serif;
}
.display-middle {
    position:absolute;
    top:50%;
    left:50%;
    transform:translate(-50%,-50%);
    -ms-transform:translate(-50%,-50%);
}
.section1 {
    font-size: 1.3rem;
}
.word-space {
    letter-spacing: 0.5em;
}
.bg-muted {
    background-color: #a7aeba;
    color: white;
}
.txt-name , .txt-email , .txt-massage {
    width: 90%;
    height: 40px;
}
.txt-massage {
    height: 100px;
}
footer {
    color: #9fa8b7;
    padding-top: 20px;
    padding-bottom: 20px;
}
footer a {
	color: #fff;
}
.links {
    font-size: 35px;
    margin-top: 10px;
}
footer a:hover {
    color: #060424;
}
.row .card {
    margin-bottom: 20px;
}
.font-20 {
    font-size: 1.3rem;
}
.card:hover {
    background-color: #ff4d4d;
    color: white;
    box-shadow: 5px 5px 10px white;
}
.text-shadow {
    text-shadow: 0 0 3px rgb(238, 233, 233), 0 0 5px rgb(135, 135, 156);
}

/*Medium devices (tablets, 768px and up)*/
@media (max-width: 768px) {
    .block2 {
        margin-top: 50px;
    }
    .block1 {
        margin-top: 20px;
    }
}
@media (max-width: 767px) {
    #section1 {
        font-size: 1.1rem;
    }
}

.color-1 {
    background-color: rgb(255, 251, 250);
}

.color-2 {
    background-color: rgb(235, 226, 225);
}

.center {
    display: flex;
    flex-direction: column;
    align-content: center;
}

@media (max-width: 500px) {
    .sm-hide {
        display: none;
    }
}

.text-yellow {
    color: yellow;
    font-weight: 600;
}