I am using a select (source from other list) in my form, but the width is too small to show entire options. How to change this width?some idea?

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1 Answer 1


You could override the default CSS.

Sample demo:

Use developer tool to check the element attribute. enter image description here

Insert script editor webpart into the list form page and insert the CSS to overwrite default CSS.

select[title="MultiLookup possible values"]{
width:260px !important

enter image description here

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