landing.css

*,
*:before,
*:after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

html, body {
    padding: 0;
    margin: 0;
}

.hero {
    width: 100%;
    height: 450px;
    background-color: #663DE4;
    background-image: url('image/web_hero.png');
    position: relative;
    background-repeat: no-repeat;
    overflow: hidden;
}

.hero {
    padding-left: 8%;
    padding-top: 50px;
}

#hero-button {
    padding:15px;
    border-style: solid;
    border-width: 2px;
    border-radius: 10px;
    text-decoration-line: none;
    background-color: white;
}

.hero h1 {
    font-size: 70px;
    margin-bottom: 0;
}

.hero p {
    margin-bottom: 100px;
}

header {
    width: 100%;
    height: 100px;
    padding-right: 40px;
}

.logo h1,
.logo .tagline {
    margin: 0px;
    padding: 0px;
    color: #663DE4;
}

.logo h1 {
    font-size: 33px;
}

header .logo {
    float: left;
    margin-left: 70px;
    margin-top: 20px;
}

.home-nav {
    float: right;
    margin-top: 30px;
    margin-right: 30px;
}

.home-nav a {
    font-size: 20px;
    margin-left: 20px;
}  

.home-nav a:hover {
    color: #663DE4;
}

header a {
    text-decoration-line: none;
    color: black;
}

.desc {
    width: 100%;
    height: 350px;
    padding-right: 10%;
    padding-left: 10%;
}

.one {
    background-color: whitesmoke;
}

.two {
    background-color: white;
}

.block {
    display: inline-block;
}

.image {
    width: 50%;
    height: 150px;
    background-color: #663DE4;
    margin-top: 90px;
}

.text {
    width: 50%;
    height: 50px;
}

.about {
    margin-left: 20%;
    margin-right: 20%;
    margin-top: 70px;
    margin-bottom: 70px;
}

.about a {
    color: #663DE4;
}

footer {
    width: 100%;
    height: 70px;
    background-color: #663DE4;
}

footer {
    padding-top: 50px;
}

small {
    margin-left: 45%;
}