Ajar Productions

When you export your in5 content with Back/Next Arrows, you can modify their appearance by adding CSS to the Resources section of the Export HTML5 with in5 dialog (either in5 in5 > Export HTML5 with in5... or to in5 > Easy Export Wizard... and click the Advanced button). 

Use any of the following, combine them, or customize them as needed.

Change the position of the Back/Next Arrows:

nav#page-nav > button {
    top:10%;
}

Scale the Back/Next Arrows:

nav#page-nav > button {
    width:34px;
    height:34px;
}

Change the values to change the size of the Back/Next arrows.

Apply a blend mode:

nav#page-nav > button {
    mix-blend-mode: multiply;
}

Set the blend mode* to any of the following:

• multiply
• screen
• overlay
• darken
• lighten
• color-dodge
• color-burn
• difference
• exclusion
• hue
• saturation
• color
• luminosity

   *Check https://caniuse.com/css-backgroundblendmode for browser support.

Apply a filter to invert them:

nav#page-nav > button {
    filter: invert(1);
}