Design changes in a block

Hi,
The classic blocks have only a few options. If you need to have control over each option of a block, then please try the flex block 1; this one can be edited as you want.
1. It can be done only with css, the classes for the element are:
.td_block_template_7 .td-block-title:before {
// your css here
}
2. What you can try are the style options in especially the line-height – https://i.imgur.com/m7u1oQ8.png
3. For block 2 what can be done is to use some custom css for the excerpt and date color, for excerpt length, you can use the options from the block – https://i.imgur.com/DSgZQsA.png
.td_block_2 .td-post-date {
color: red;
}
.td_block_2 .td-excerpt {
color: darkgreen;
}
Thank you!