How do I make the text box size of "other" option bigger?

I have a multiple choice questions with an "other" option, but the text box does not fit the entire "other text" that I inputted. 

It is possible to increase the width of the "Other" field in check box. Please insert this custom CSS code:

#cid_29 .form-checkbox-other-input {
   width: 90% !important;
}

#cid_29 .form-single-column {
   width: 100% !important;
}

.form-radio-item, .form-checkbox-item {
    max-width: none !important;
}

Here's a guide on How-to-Inject-Custom-CSS-Codes. Here's the result:

Hope that helps. If you need further assistance, let us know. Thank you.