how to make hr line bold code example

Example 1: css thinner hr

hr {
    border: none;
    height: 1px;
    /* Set the hr color */
    color: #333; /* old IE */
    background-color: #333; /* Modern Browsers */
}

Example 2: html horizontal line style

<!-- HTML -->

<!-- You can change the style of the horizontal line like this: --> 

<hr style="width:50%", size="3", color=black>  


<!-- Or like this: -->

<hr style="height:2px; width:50%; border-width:0; color:red; background-color:red">

Example 3: make bigger in boootstrap

<hr style="height:1px;border:none;color:#333;background-color:#333;" />