pencegahan kecelakaan kerja
.code-block-float-right {margin: 8px 0 8px 8px; float: right;} .code-block-center {margin: 8px auto; text-align: center; display: block; clear: both;} .ai-align-left * {margin: 0 auto 0 0; text-align: left;} .ai-align-right * {margin: 0 0 0 auto; text-align: right;} .ai-center * {margin: 0 auto; text-align: center; }