.clearfix {
  overflow: auto;
}
body {
width: 75%;
margin-left: auto;
margin-right: auto;
margin:auto;
}
button {
border-color: #E30A17;   
background-color: white;
margin-top: 2px;
}
nav {
white-space: nowrap;
border-top-style: solid;
border-right-style: none;
border-bottom-style: solid;
border-left-style: none;
border-color: white;
text-indent: 20px;
border-radius: 10px;
background-color: #E30A17;
width: 100%;
height: 25px;
font-size: 100%;
}
button:hover {
border-color: white;  
background-color: #E30A17;
color: white;
}
header,footer {
background-color: #E30A17;
color: white;
width: 100%;
}       
header,footer,article,aside {
border-radius: 10px;
font-family: tahoma;
} 
article,aside {
  font-size: 125%;
margin: auto;
}
img {
display: block;
margin-left: auto;
margin-right: auto;
margin:auto;
}
h1 {
margin: auto;
font-size: 300%;
}
header {
}
aside {
text-align: center;
border-style: solid;
border-color: #E30A17;
background-color: white;
float: right;
width: 25%;
}
article {
text-indent: 20px;
padding: 10px;
float: left;
width: 74.5%;
background-color: white;
border-style: solid;
border-color: #E30A17;
clear: left;
margin: auto;
}
footer {
clear: both;
margin-bottom: 10px;
}
a {
color: white;
text-decoration: none;
}
a:hover {
  color: black;
  text-decoration: underline;
  text-decoration-color: red;
}
* {
box-sizing: border-box;
}
hr {
background-color: red;
border-color: red;
}
h3 {
color: red;
}