yerg1 Hi. In this template there was no list styles defined. When such style is not defined than a default style of a browser is in use, so You can see it look somehow, but there is actually no code to look at in developer tool. By adding the classes to template's css You have a more control over how it will look like, but I would suggest to only provide a style for content lists, so it should look like this:
.article-content ul,
.article-content ol {
line-height: 1.5em;
}
Problem may be that <ul> is used for different site elements like Menus for example and having a line-height set globally may affect it as well.