Most of web designers when they are creating web design, they focus on that stuff which shows in the design like Font, Colours, and Images etc... but designers forget many other impacts which doesn't show like White space/ negative space between the elements.

What is white space/negative space in web design? - White space in web design means the space use between two elements to stand out or separate from other elements. Instance tab, space, and carriage return and many more but these are the main characters of white space.  Why you should draw your attention on this small thing, because unnecessary use of white space will increase your website loading time and if your website takes time to load it will increase your bounce rate only.

For more on White Space/Negative Space check this link