style.css

h1{
    text-align: center;
    background-color: blue;
    color: white;
}
.color-orange {
    color: orange;
}
.center {
    text-align: center;
}
.color-red {
    color: red;
}
.w-30 {
    width: 30%;
}
ul {
    overflow: hidden;
    list-style: none;
    display: inline-block;
}
nav {
    background-color: green;
    top: 0;
    width: 100%;
    text-align: center;
}
ul li {
    float:left;
}
li a {
    color: white;
    display: block;
    padding: 14px 30px;
    text-decoration: none;
}
p{
    text-align: center;
    font-family: "Trirong", serif;
    font-size: 25px;
    line-height: 50px;
}
h2{
    text-align:center;
    background-color: black;
    color: white;
    font-size: 25px;
}

img {
    max-width: 200%;
    max-height: 200%;
    margin:0 auto;
    display: block;
   }
   .cat {
    height: 50px;
    width: 100px;
   }
footer{
    background-color: blue;
    text-align: center;
    color: white;
   }
p{
    background-color: blue;
    text-align: justify;
    color: white;
  }
 .logo{
   animation: aumentar 1s ease-in infinite alternate;
 }
 @keyframes aumentar {
    0%{

    }
    100%{
     width: 50px;
    height: 50px;
    border-radius: 20%;
    background-color: black ;
    animation-name: creciendo;
    animation-duration:200ms;
    animation-iteration-count: infinite;
    animation-direction: alternate;
    }
 }
.card-img-top {
    width:100%;
    height:auto;
    object-fit: cover;
}
.card-index {
    width:18rem;
    height:20rem;
}