style.css

body, ul, li, h1, h2, a{
    margin: 0;
    padding: 0;
    font-family: Arial;

}

header{
    background-color: #5c32f6;
    padding: 20px;
    text-align: center;
    position: fixed;
    width: 100%;
    z-index: 1;
    top: 0;
    left: 0;
}
header h1{
    color: white;
    border: 8px solid white;
    padding: 6px 12px;
    display: inline-block;
    border-radius: 36px;
}
.banner{
    position: relative;
}
.banner img{
    max-width: 100%;
}
.banner .welcome{
    background-color: #fe2b14;
    color: white
    padding: 30px;
    position: absolute;
    left: 0;
    top: 180px;
}
.banner h2{
    font-size: 75px;
}
.banner h2 span{
    font-size: 1.3em;
}
nav{
    background-color: #f4f4f4;
    padding: 20px;
    position: sticky;
    top: 95px;
}
nav ul{
    white-space:  nowrap;
    max-width: 1200px;
    margin: 0 auto;
}
nav li{
    width: 25%;
    display: inline-block;
    font-size: 24px;
}
nav li a{
    text-decoration: none;
    color: #4b4b4b;
}
nav li a.join{
    color: #f63232;
}
main{
    max-width: 100%;
    width: 1200px;
    margin: 80px auto;
    padding: 0 40px;
    box-sizing: border-box;
    
}
.card {
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
    max-width: 300px;
    margin: auto;
    text-align: center;
    font-family: arial;
  }
  
  .price {
    color: grey;
    font-size: 22px;
  }
  
  .card button {
    border: none;
    outline: 0;
    padding: 12px;
    color: white;
    background-color: #000;
    text-align: center;
    cursor: pointer;
    width: 100%;
    font-size: 18px;
  }
  
  .card button:hover {
    opacity: 0.7;
  }





article h2{
    color: #f63232;
    font: size 48px;
}
article p{
    line-height: 2em;
    color: #4b4b4b;
}
.images{
    text-align: center;
    margin: 10px  0;
    white-space: nowrap;
    float: left;
}
.images li{
    display: flexbox;
    width: 10%;
    margin: 20px 5%;
    padding: 5px;
}
.images li img{
    max-width: 50%;
}
section.join{
    background: #f4f4f4;
    text-align: center;
    padding: 10px 20px;
    color: #4b4b4b;
}
.join h2{
    font-size: 36px;
}
.join p{
    line-height: 2em;
    color: #4b4b4b;
    text-align: center;
}  
form input{
    margin: 5px 0;
    padding: 10px 30px;
    font-size: 20px;
    border-radius: 25px;
    border: 1px solid white;
    text-align: right;
}
footer{
    background: #f63232;
    columns: white;
    padding: 5px;
    text-align: center;     
}

/* pseudo classes */
nav li a:hover{
    text-decoration: underline;
}
.images li:hover{
    position: relative;
    top: -4px;
}
form input:focus{
    border: 4px dashed #4b4b4b;
    outline: none;
}
form input:valid{
    border: 4px solid #71d300;
}