<div class="container">
    <p>Lorem, ipsum dolor sit amet consectetur adipisicing elit. Maiores minima omnis explicabo debitis error dolores in alias sunt, dignissimos voluptatum?</p>
    <div class="square"></div>
    
    <a href="#">Test</a>
</div>

body {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.container {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    align-content: center;
    justify-content: space-around;
   
    margin:0;
    
}
a {

    display: grid;
    align-content: center;
    justify-content: center;
    width: 300px;
    height: 300px;
    border-radius: 5px;
    margin:0;
    background-color: orange;
    text-align: center;
    font-family: Helvetica;
    font-size: 32px;
    color: mintcream;
    transition-property: background-color;
    transition-duration: 750ms;
    
    
}
  
a:hover {
    background-color: blue;
    
}
.square{
    display: grid;
    width: 300px;
    height: 300px;
    display: flex;
    
    border-radius: 5px;
    align-content: center;
    justify-content: center;
    margin: 0;
    background-color: green;
}
p {
    font-size: 20px;
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;

}