* { margin: 0;padding: 0; }
html { margin: 0;padding: 0; }
html { margin: 0;padding: 0; }
body { padding: 4rem;width: 70rem; }
body *{ font-family: Yekan,Tahoma,"DejaVu Sans",helvetica,arial,freesans,sans-serif; } 
section { display: grid; grid-template-columns: auto auto; gap: 1rem 1rem; }
article { border: 0.2rem #87a6ff solid; border-radius: 1rem; display: flex; justify-content: center; align-items: center;min-height: 20rem; }
pre { border:0.2rem #87a6ff solid; margin: 2rem; text-align: center; min-height: 2rem; padding: 2rem 0; }
img { width:20rem;border-radius: 2rem; }
h2 {font-size: 4rem;}
h3 {font-size: 2.1rem;}