*{
    box-sizing: border-box;
}

body{
    background: url(../img/violeta.png) left repeat-y, url(../img/violeta.png) right repeat-y;
    background-size: 50px;
    width: 95%;
    margin: 10px auto;
    background-color: aqua;
}

h1{
    text-align: center;
    font-size: 2.6em;
    font-family: "knewave";
    letter-spacing: 10px;
    color:blueviolet ;
    text-shadow: 5px -5px 5px white;
    border-bottom: 8px solid blueviolet;
    width: 99%;
    margin: 20px auto;
}

header{
    width: 99%;
    margin: 20px auto;
    background-color: white;
    display: flex;
    flex-wrap: nowrap;
    padding: 10px;
    justify-content: space-between;
}

img{
    padding: 5px;
    border: 3px solid black;
}

div{
    width: 85%;
    text-align: justify;
    font-size: 1.5em;
}

main{
    width: 95%;
    margin: 10px auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

article{
    width: 30%;
    height: 300px;
    font-size: 1.8em;
    padding: 20px;
    margin: 20px 0px;
}

article:nth-of-type(even){
    border:4px solid darkgreen;
    border-radius: 30px;
    background-image: url(../img/verde.png);
    text-align: center;
}

article:nth-of-type(odd){
    border:4px dotted white;
    color: white;
    background-color: orange;
}

article:nth-of-type(odd)::first-line{
    color:black
}