Значимые события и достижения

body { background-attachment: scroll; background-repeat: no-repeat; background-position: top center; background-color: transparent } details { border: 1px solid #999; border-radius: 5px; margin: 0 2em .4em 2em; padding: 1.04%; } details { margin: 1em; cursor: pointer; } summary { border-radius: 5px; cursor: pointer; margin: -1%; padding: 8px 10px; background: -webkit-linear-gradient(top, #f3f3f3 50%, #e6e6e6 50%); }