diff --git a/index.html b/index.html
index 125bb2b..fc8210a 100644
--- a/index.html
+++ b/index.html
@@ -654,6 +654,7 @@ function plot(equation,variablename="x",scale=5,step=1){
AFRAME.registerComponent('target', {
init: function () {
targets.push( this.el )
+ this.el.classList.add("collidable")
}
})
@@ -3061,12 +3062,12 @@ AFRAME.registerComponent('startfunctions', {
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