* {
  box-sizing: border-box;
}

html {
    height: 100%;
    background: #000;
}

body {
    font-family: robotoregular, Raleway;
    height: 100%;
    background: url(../images/bgroundwalk.jpg);
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    position: relative;
    /*overflow:hidden;*/
    overflow: visible;
    -webkit-animation: 5s overlay forwards;
    animation: 5s overlay forwards;
}

.cont {
  max-width: 800px;
  text-align: center;
  margin: 0 auto;
  padding: 50px 0;
  color: #fff;
  padding:5px;
}
.cont h1 {
  /*font-size: 3em;*/
  font-size: 28px;
  margin: 0;
  position: relative;
}
.cont p {
  /*font-size: 1.5em;*/
  font-size: 20px;
  margin: 0;
  padding: 10px 0;
}

button {
  border: none;
  text-transform: uppercase;
  font-weight: 700;
  background: transparent;
  color: #fff;
  border: 4px solid;
  margin: 15px 0;
  padding: 8px 17px;
  transition: 0.7s background cubic-bezier(0.2, 0.5, 0.8, 0.2);
}
button:hover {
  background: #fff;
  color: #000;
  border-color: #fff;
  cursor:pointer;
}

@-webkit-keyframes overlay {
    100% {
        box-shadow: inset 0 0 0 1000px rgba(0, 0, 0, 0.5);
    }
}

@keyframes overlay {
    100% {
        box-shadow: inset 0 0 0 1000px rgba(0, 0, 0, 0.5);
    }
}

@media screen and (max-width: 600px) {
    .cont{
        padding-left:10px;
        padding-right:10px;
    }
    .cont h1 {
        /*font-size: 5em; */
        font-size: 24px;
        margin: 0;
        position: relative;
    }
    .cont p {
        font-size: 18px;
        margin: 0;
        padding: 10px 0;
    }

}