example

 

 

Accordion with symbols

In this example we have added a “plus” sign to each button. When the user clicks on the button, the “plus” sign is replaced with a “minus” sign.

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/* Style the buttons that are used to open and close the accordion panel */
.accordion {
background-color: #eee;
color: #444;
cursor: pointer;
padding: 18px;
width: 100%;
text-align: left;
border: none;
outline: none;
transition: 0.4s;
}

/* Add a background color to the button if it is clicked on (add the .active class with JS), and when you move the mouse over it (hover) */
.active, .accordion:hover {
background-color: #ccc;
}

/* Style the accordion panel. Note: hidden by default */
.panel {
padding: 0 18px;
background-color: white;
display: none;
overflow: hidden;
}
.accordion:after {
content: '\02795'; /* Unicode character for "plus" sign (+) */
font-size: 13px;
color: #777;
float: right;
margin-left: 5px;
}

.active:after {
content: "\2796"; /* Unicode character for "minus" sign (-) */
}