radio: Fix one part of the css

Test Plan:
http://localhost:9000/test.html#content=%7B%22question%22%3A%7B%22content%22%3A%22Consider%20the%20table%20with%20function%20values%20for%20%24f(x)%3D3(x-4)%5E%7B(x-4)%7D%24%20at%20positive%20%24x%24-values%20near%20%244%24.%20Notice%20that%20there%20is%20one%20value%20missing%20in%20the%20table.%5Cn%5CnUse%20a%20calculator%20to%20evaluate%20%24f(x)%24%20at%20%24x%3D4.0001%24%20and%20enter%20this%20number%20in%20the%20table%20rounded%20to%20the%20nearest%20%240.000001%24.%5Cn%5CnFrom%20the%20table%2C%20what%20does%20the%20one-sided%20limit%5Cn%5Cn%24%5C%5Cqquad%20%5C%5Cdisplaystyle%20%5C%5Clim_%7Bx%5C%5Cto%204%5E%2B%7D3(x-4)%5E%7B(x-4)%7D%24%5Cn%5Cnappear%20to%20be%3F%5Cn%5Cn%24x%24%7C%24f(x)%24%5Cn-%3A%7C%3A-%3A%5Cn%244.1%24%7C%242.382985%24%5Cn%244.01%24%7C%242.864978%24%5Cn%244.001%24%7C%242.979348%24%5Cn%244.0001%24%7C%5B%5B%E2%98%83%20input-number%201%5D%5D%5Cn%22%2C%22widgets%22%3A%7B%22input-number%201%22%3A%7B%22options%22%3A%7B%22value%22%3A%222.997238%22%2C%22simplify%22%3A%22required%22%2C%22size%22%3A%22normal%22%2C%22inexact%22%3Atrue%2C%22maxError%22%3A%220.000001%22%2C%22answerType%22%3A%22number%22%7D%2C%22type%22%3A%22input-number%22%7D%7D%7D%2C%22answerArea%22%3A%7B%22type%22%3A%22radio%22%2C%22options%22%3A%7B%22choices%22%3A%5B%7B%22content%22%3A%22%242.9%24%22%2C%22correct%22%3Afalse%7D%2C%7B%22content%22%3A%22%242.98%24%22%2C%22correct%22%3Afalse%7D%2C%7B%22content%22%3A%22%243%24%22%2C%22correct%22%3Atrue%7D%2C%7B%22content%22%3A%22%244%24%22%2C%22correct%22%3Afalse%7D%2C%7B%22content%22%3A%22The%20limit%20does%20not%20exist%22%7D%5D%2C%22randomize%22%3Afalse%2C%22multipleSelect%22%3Afalse%7D%2C%22calculator%22%3Atrue%7D%2C%22hints%22%3A%5B%7B%22content%22%3A%22Let's%20complete%20the%20table.%20The%20calculator%20approximation%20gives%20%24f(4.0001)%3D2.997238%24.%22%2C%22widgets%22%3A%7B%7D%7D%2C%7B%22content%22%3A%22With%20the%20table%20complete%2C%20we%20can%20see%20that%20the%20values%20of%20%24f(x)%24%20as%20%24x%24%20approaches%20%244%24%20from%20the%20right%20is%20approaching%20%243%24%3B%20so%20the%20limit%20appears%20to%20be%20%243%24.%22%2C%22widgets%22%3A%7B%7D%7D%5D%7D
Make sure the multiple choice options aren't indented too far

Auditors: brianmerlob