.regex-input-group{font-family:monospace}#regexInput{border-right:none;font-size:1.1rem}.flag-btn{border-left:none;cursor:pointer;font-size:.9rem}#highlightLayer,#testString{font-family:'Courier New',Courier,monospace;font-size:16px;line-height:1.5;padding:1rem;width:100%;min-height:300px;border:1px solid #dee2e6;border-radius:6px;white-space:pre-wrap;word-wrap:break-word}#testString{background-color:transparent;position:relative;z-index:2}.match-0{background-color:#d5e9f7;box-shadow:0 0 0 1px #a4d2f5;border-radius:2px}.match-1{background-color:#d1f7c4;box-shadow:0 0 0 1px #9ef57f;border-radius:2px}.match-group{background-color:#f7d5eb;font-weight:700}.cheatsheet-item{cursor:pointer;padding:4px 8px;border-radius:4px}.cheatsheet-item:hover{background-color:#f0f0f0}.cheatsheet-code{font-family:monospace;background:#eee;padding:2px 5px;border-radius:4px;color:#d63384}.error-box{display:none;background-color:#ffeef0;color:#dc3545;padding:.5rem;border-radius:4px;font-size:.9rem;margin-top:.5rem}