.case-converter-wrapper{
max-width:700px;
margin:auto;
}

textarea{
width:100%;
height:120px;
padding:10px;
margin-bottom:10px;
border:1px solid #ccc;
border-radius:5px;
}

.btn-group{
margin-bottom:10px;
}

.btn-group button{
padding:10px 12px;
margin:5px;
border:none;
background:#0073aa;
color:white;
border-radius:4px;
cursor:pointer;
}

.btn-group button:hover{
background:#005177;
}

.copy-btn{
padding:10px 15px;
background:#28a745;
color:white;
border:none;
border-radius:4px;
cursor:pointer;
}