textarea {
    border: 1px solid #999;
    background-color: #f3f3f3;
    padding: 2px;
    font-size: 100%;
}

.txt10, .txt20, .txt30, .txt40, .txt50, .txt100, .txt150, .txt200, .txt300, txt400, txt500 {
    border: 1px solid #999;
    background-color: #f3f3f3;
    padding: 2px;
    font-size: 100%;
}

.txt10 {
    width: 10px;
}

.txt20 {
    width: 20px;
}

.txt30 {
    width: 30px;
}

.txt40 {
    width: 40px;
}

.txt50 {
    width: 50px;
}

.txt100 {
    width: 100px;
}

.txt150 {
    width: 150px;
}

.txt200 {
    width: 200px;
}

.txt300 {
    width: 300px;
}

.txt400 {
    width: 400px;
}

.txt500 {
    width: 500px;
}