*{
    margin: 0;
}


header {
    background-color: rgb(250, 4, 4);
    height: 50px;

    
}
nav {
  display: flex;
  justify-content: space-between;
  padding-left: 100px;
  padding-right: 100px;
  padding-top: 10px;
}

nav a {
color: white;
font-size: 20px;
font-family: Verdana, Geneva, Tahoma, sans-serif;
text-decoration: none;

}

nav a:hover {
    color:black ;
}
 h1 {
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    text-align: center;
 }
 .divPai {
    display: flex;
    justify-content: space-between;
 }

 .divFilho1 {
    background-color: red;
    height: 600px;
    width: 33.33% ;
    background-image: url(img/Albert_Einstein_1947.jpg);
    background-size: cover;
 }
 
 .divFilho2 {
    background-color: rgb(20, 4, 250);
    height: 600px;
    width: 33.33%;
    background-image: url(img/Albert_Einstein_1947.jpg);
    background-size: cover;
    
 }

 .divFilho3 {
    background-color:  rgb(4, 250, 86);
 height: 600px;
 width: 33.33%;
 background-image: url(img/Albert_Einstein_1947.jpg);
 background-size: cover;
 background-repeat: no-repeat;
    
 }
 footer {
    background-color: rgb(245, 11, 11);
    height: 100px;
    bottom: 0;
      position: fixed;
      width: 100%;
 }
 footer a {
 color: white;
 padding-left: 300px;
 padding-top: 30px;
 padding-right: 300px;
 font-size: 30px;
 text-align: center;
 
 }