style.css

/*
 * Jeu Pang (Avril 2019)
 * script.js
 * 
 * Author: Fabian Devel, Nathanaël Houn, Valentin Perignon
 */

 /* Général */
 html, body {
     margin: 0;
     padding: 0;
 }

 body {
    background-color: white;
    font-family: sans-serif;
 }

 h1 {
     font-size: 20px;
 }

/* About body */
#about-body {
    background-color: rgba(0, 100, 240, 0.4);
}

/* Title */
#title {
    padding: 20px 20px;
    background-color: rgb(0, 100, 240);
}

#title h1 {
    margin: 0;
    font-weight: lighter;
    font-size: 20px;
    color: #FFF;
}

/* Subtitle */
.subtitle {
    padding: 10px 20px;
    background: rgb(0, 60, 255);
}

.subtitle h2 {
    margin: 0;
    font-weight: 600;
    font-size: 17px;
    color: #FFF;
}

 /* Content */
#content {
    width: 1086px;
    margin: 50px auto;
}

/* About */
#about {
    margin-top: 15px;
    text-align: center;
}

/* Text content */
.text_content {
    padding: 5px 20px;
}

/* Cow lists */
ul {
    padding-left: 0px;
}

li {
    display: list-item;
    list-style: disc url('assets/cow.png') inside;
}

/* Canvas */
#cvs {
    border: 3px solid #000a12;
    border-radius: 10px;
    background: url('assets/bg_fac.jpg');
}

/* Hidden block */
.hidden {
    display: none;
}

/* Old buttons
 * source : https://codepen.io/shdwjk/pen/OWpbNN
 */
.oldkey {
    border-radius: 10px;
    background: -webkit-radial-gradient( center, #FAF6F3,#FAF6F3, #D8C8B7);
    border-style: solid;
    border-width: 8px;
    border-color: #E7DBD0 #DACABB #BFAF9D #F6EDE5;
    display: inline-block;
    min-width: 3em;
    height: 3em;
    line-height: 3em;
    font-weight: bold;
    font-family: sans-serif;
    vertical-align: middle;
    text-align: center;
    color: #222;
    margin: .1em;
    cursor: pointer;

}

.oldkey:hover {
    box-shadow: .1em .1em .3em .2em #666;
    background: -webkit-radial-gradient( center,#FAF6F3,#FAF6F3, #BFAF9D);
}

.oldkey span {
    padding-left: 1em;
    padding-right: 1em;
 }