header {
        text-align: center;
}
h1 {
    color: #01a0e4;
    border: 2px solid #3e3d8d;
    display: inline-block;
    padding: 20px;
}
* {
    box-sizing: border-box;
    margin: 15px 0 15px 0;
    transition: 1s;
}
body {
    background: linear-gradient(to right, lightgreen 30%, lightblue);
}
img {
    height: 100px;
}
.splash {
    float: left;
    margin-left: 15px;
}
.sastralogo {
    float: right;
    margin-right: 15px;
}
a, a:visited {
    margin: 0;
    padding: 0;
    text-decoration: none;
    font-style: italic;
    color: #01a0e4;
}
section {
    text-align: justify;    
}   
article, .aside, .survey {
    background: linear-gradient(to right, lightyellow 35%, pink);
    padding: 5px;
    border: 2px solid white;
    margin: 15px;
}
.gui, .gui-img {
    margin: 0;
    height: auto;
    text-align: center;
    font-weight: bold;
    
}
article:hover, aside div:hover {
    background: lightblue;
    
}

h1:hover {
    border: 2px solid #01a0e4;
    color: #3e3d8d;

}
.survey {
    background: #add8e6;
}
/* .survey {
    height: auto;
    text-align: center;
    font-weight: bold;
    margin : 15px;
} */
aside div div {
    border: 0;
    background-color: transparent;
}
nav {
    width: 100%;
    height: auto;
    text-align: center;
    font-weight: bold;
    background-color: transparent;
    color: #01a0e4;
    padding: 10px;
    margin: 0;
    display: block;
    text-decoration: none;
}
nav ul li {
    display: inline;
    margin: 0 20px;
    color: black;
}
nav ul li a {
    color: #01a0e4;
    font-weight: normal;
    font-style: normal;
}