name and number field doesn't appear in same line

hello team , i have problem with my form name and phone number field doesnt appear in same , how can i solve this , and also i want to ask how can i change colour of product quantity its black now i want to make it white . Thankyou

To change the way name and phone field are aligned simply remove the left margin from their label. You can use the below CSS for that. 

#id_36 .form-sub-label-container, #id_38 .form-sub-label-container{

     margin-left: 0!important; 

}

The color of the product quantity fields can be modified using the following code:

.form-dropdown{

    color: white;

}

Note that the texts will become invisibility when the Dropdown is clicked because their background is also white. You can choose a different color to prevent that.