body {background-color: rgba(153, 227, 233, 0.486);}
h1 {font-style: normal; font-family: Arial, sans-serif;}
p {font-style: italic; color: rgb(124, 22, 219); font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;}
div.calcul{ font-style: normal; color: blue; font-family:'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;}
a:hover{ color:chartreuse;}
.boxhaut {box-sizing: border-box; width: 50%;height: auto; border-radius: 40px 40px 40px 0px/ 40px 40px 40px 0px; font-family: Arial, Helvetica, sans-serif; font-size: 1.4rem; color: rgb(13, 158, 194);
    border-style:groove; border-width: 0.5rem; border-color: rgb(30, 146, 175); padding: 10px;}
a {color: rgb(13, 158, 194);}
.img1 {margin: 1rem 0 0 0;}